JP7321936B2 - Techniques for Communicating Synchronization Signal Block Indexes in Timing Synchronization Signals - Google Patents

Description

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[0001] This patent application is filed on March 14, 2018 by Sadiq et al. and U.S. Provisional Patent Application No. 62 by Sadiq et al. /476 , 633.

[0002] This disclosure relates, for example, to wireless communication systems and, more particularly, to techniques for communicating a synchronization signal (SS) block index in a timing synchronization signal (TSS).

[0003] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (eg, time, frequency, and power). Examples of such multiple-access systems include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, and orthogonal frequency division multiple access (OFDMA) systems.

[0004] A wireless multiple-access communication system may include a number of base stations that each simultaneously support communication for multiple communication devices, sometimes known as user equipments (UEs). In a Long Term Evolution (LTE) or LTE-Advanced (LTE-A) network, a set of one or more base stations may define an eNodeB (eNB). In next-generation, new radio (NR), millimeter wave (mmW), or 5G networks, base stations may take the form of smart radio heads (or radio heads (RH)) or access node controllers (ANC), A set of smart radio heads communicate with an ANC that defines a gNodeB (gNB). A base station communicates with a set of UEs (e.g., on downlink channels for base station-to-UE transmissions and on uplink channels (e.g., UE-to-base station transmissions)). obtain.

[0005] Wireless devices operating in the mmW frequency range, e.g., 28 GHz, 40 GHz, 60 GHz, etc., experience increased signal attenuation (e.g., path loss) that can be affected by various factors such as temperature, air pressure, diffraction, and the like. may be associated. As a result, signal processing techniques such as beamforming may be used to coherently combine energy and overcome path loss at these frequencies. In some cases, a base station may transmit a signal over a broadcast channel by repeatedly transmitting the signal while changing the beam on which the signal is transmitted (e.g., the base station may transmit multiple beams while performing beam sweeping). beams). In some cases, the base station may repeatedly transmit groups of signals that define SS blocks. Signals transmitted within an SS block may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and/or a physical broadcast channel (PBCH). These signals may be used by the UE, for example, for network acquisition or for other purposes. Conventional techniques used by UEs to acquire and synchronize with the network are imperfect.

[0006] The described techniques relate to improved methods, systems, and devices or apparatus that support communicating a synchronization signal (SS) block index in a timing synchronization signal (TSS). In general, the described techniques relate to a base station transmitting a set of SS blocks each carrying a TSS containing an SS block index, wherein a user equipment (UE) determines a broadcast channel transmission time interval (BCH TTI) ) may identify and use the SS block index to determine the timing of the TSS. Beneficially, a UE may use TTI timing to reduce the amount of time required to acquire and synchronize with a base station.

[0007] In one example, a base station transmits multiple SS blocks carrying overlapping signals on different beams (or on the same beam but at different times), and a UE receives one of the SS blocks. The UE may then determine the timing of the SS blocks with respect to slot boundaries, subframe boundaries, frame boundaries, or some other timing reference so that the UE may synchronize with the base station. If the UE has additional a priori information about the SS block it is receiving, the UE makes assumptions about signal timing and synchronization that allow the UE to more quickly synchronize with the base station and perform demodulation. It may be possible to perform For example, if the base station transmits all signals within an SS block coherently (eg, from the same antenna port), the UE can assume that all signals within the SS block are quasi-collocated. That is, the UE can assume that some characteristics of the signal within the SS block are essentially unchanged, eg, delay spread, Doppler spread, Doppler shift. This may allow the UE to synchronize more quickly with the base station, for example by using the SSS as the reference for the TSS, which in turn is the demodulation reference for the physical broadcast channel (PBCH). act as a signal. The UE may then use TSS and SSS together to demodulate the PBCH.

[0008] In one example, a method for wireless communication at a UE is described. The method comprises receiving a TSS and a PBCH, and the TSS determining timing of the TSS within the BCH TTI based at least in part on timing of the TSS within the Broadcast Channel Transmission Time Interval (BCH TTI). , demodulating the PBCH based at least in part on the TSS.

[0009] In one example, an apparatus for wireless communication at a UE is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions are based at least in part on receiving a TSS and a PBCH; determining the timing of the TSS within the BCH TTI; and demodulating the PBCH.

[0010] In one example, another apparatus for wireless communication at a UE is described. The apparatus comprises means for receiving a TSS and a PBCH; means for the TSS to determine timing of the TSS within the BCH TTI based at least in part on timing of the TSS within the BCH TTI; and means for demodulating the PBCH based at least in part.

[0011] In one example, a non-transitory computer-readable medium storing computer-executable code for wireless communication at a UE is described. The code is based at least in part on the TSS, wherein the TSS is based at least in part on the timing of the TSS in the BCH TTI; and demodulating the PBCH.

[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described above include receiving an SS block including a TSS and a PBCH; determining the timing of an SS block within a BCH TTI based at least in part on the SS block index, which may be at least partially based on the index, the SS block index indicating the timing of the TSS within the BCH TTI; may further include the processes, features, means, or instructions of In some examples, receiving the TSS and the PBCH may include receiving the TSS time division multiplexed with the PBCH on the same set of one or more frequency subcarriers. In some examples, an SS block may further include a PSS and an SSS, and receiving TSS, SSS, and PBCH may include receiving PBCH and TSS after SSS.

[0013] In some examples, receiving the TSS and the PBCH comprises the first set of one or more frequency subcarriers that overlap with the second set of one or more frequency subcarriers on which the PBCH is received. The first set of one or more frequency subcarriers may be different from the second set of one or more frequency subcarriers. In some examples, receiving the TSS and the PBCH may include receiving the TSS frequency division multiplexed with at least a portion of the PBCH. In some examples, the SS block may further include a PSS and an SSS, and receiving the SSS and the PBCH may include receiving a second portion of the PBCH after the SSS.

[0014] In some examples, receiving the TSS and the PBCH comprises one or more frequency subcarriers interleaved with a second set of one or more frequency subcarriers on which the PBCH is received. It may include receiving a TSS on the first set. In some examples, the SS block may further include a PSS and an SSS, and receiving the TSS, PSS, SSS, and PBCH may include interleaved TSS and PBCH and frequency division multiplexed PSS and It may include receiving an SSS.

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described above use the SS block index encoded in the waveform signature of the TSS or in at least one modulation symbol in the TSS. It may further include a process, feature, means or instructions for receiving. Some examples of the methods, apparatus, and non-transitory computer-readable media described above include processes, features, and methods for identifying beams in which SS blocks are transmitted based at least in part on SS block indices. It may further include means or instructions. In some examples, the PBCH may be received based at least in part on the SS block index, and the present methods, apparatus, and non-transitory computer-readable media decode the PBCH based at least in part on the SS block index. may further include processes, features, means, or instructions for In some examples, the SS block may further include a PSS and an SSS, where the SSS is based at least in part on the physical cell identity (PCI) of the base station.

[0016] In some examples, an SS block may further include a PSS and an SSS, and the present methods, apparatus, and non-transitory computer-readable media describe a process for demodulating a PBCH based at least in part on the SSS. , features, means, or instructions. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI. In some examples, the TSS includes at least one modulation symbol encoding the SS block index, and the methods, apparatus, and non-transitory computer-readable media described above encode in the at least one modulation symbol may further include a process, feature, means, or instructions for decoding the encoded SS block index. In some examples, at least one modulation symbol includes a quadrature phase shift keying (QPSK) symbol.

[0017] In one example, a method for wireless communication at a base station is described. The method includes allocating resources for the TSS and the PBCH within the BCH TTI; determining the TSS based at least in part on the timing of the TSS within the BCH TTI; transmitting the TSS and the PBCH on allocated resources; and the TSS being transmitted as a demodulation reference signal (DMRS) for the PBCH on at least one port used to transmit the TSS and the PBCH. can include

[0018] In one example, an apparatus for wireless communication at a base station is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions are for allocating resources for the TSS and the PBCH within the BCH TTI, determining the TSS based at least in part on the timing of the TSS within the BCH TTI, and allocating for the TSS and the PBCH. transmitting the TSS and the PBCH on separate resources; and the TSS is transmitted as DMRS for the PBCH on at least one port used to transmit the TSS and the PBCH. It may be executable by a processor.

[0019] In one example, another apparatus for wireless communication at a base station is described. The apparatus comprises means for allocating resources for the TSS and the PBCH within the BCH TTI, means for determining the TSS based at least in part on the timing of the TSS within the BCH TTI, and the TSS and the PBCH. means for transmitting the TSS and the PBCH on resources allocated for the TSS as a DMRS for the PBCH on at least one port used for transmitting the TSS and the PBCH can include

[0020] In one example, a non-transitory computer-readable medium storing computer-executable code for wireless communication at a base station is described. Code is allocated for the TSS and the PBCH within the BCH TTI, determining the TSS based at least in part on the timing of the TSS within the BCH TTI, and allocating the TSS and the PBCH. transmitting the TSS and the PBCH on separate resources; and the TSS is transmitted as DMRS for the PBCH on at least one port used to transmit the TSS and the PBCH. It may be executable by a processor.

[0021] Some examples of the methods, apparatus, and non-transitory computer-readable media described above may further include processes, features, means, or instructions for allocating resources for the SS block, the SS Resources allocated for a block include resources allocated for the TSS and PBCH, and the timing of the TSS may be based at least in part on the SS block index associated with the SS block. The SS block index may indicate the timing of the TSS within the BCH TTI, and the TSS and PBCH may be transmitted by transmitting SS blocks. In some examples, transmitting the TSS and PBCH may include time division multiplexing the TSS with the PBCH on the same set of one or more frequency subcarriers. In some examples, the SS block may further include PSS and SSS, and transmitting TSS, SSS, and PBCH may include transmitting PBCH and TSS after SSS.

[0022] In some examples, transmitting the TSS and the PBCH comprises a first set of one or more frequency subcarriers that overlap with a second set of one or more frequency subcarriers on which the PBCH is transmitted. The first set of one or more frequency subcarriers may be different from the second set of one or more frequency subcarriers. In some examples, transmitting the TSS and the PBCH may include frequency division multiplexing the TSS and at least a portion of the PBCH. In some examples, the SS block may further include PSS and SSS, and transmitting SSS and PBCH may include transmitting a second portion of PBCH after SSS.

[0023] In some examples, transmitting the TSS and the PBCH comprises one or more frequency subcarriers interleaved with a second set of one or more frequency subcarriers on which the PBCH is transmitted. It may include transmitting a TSS on the first set. In some examples, the SS block may further include a PSS and an SSS, and transmitting the TSS, PSS, SSS, and PBCH frequency division multiplexes the PSS and SSS with the interleaved TSS and PBCH. can include converting Some examples of the present methods, apparatus, and non-transitory computer-readable media are for encoding SS block indices in a waveform signature of a TSS or including SS block indices in at least one modulation symbol in a TSS. may further include the processes, features, means, or instructions of In some examples, the SS block index may further identify the beam on which the SS block is transmitted.

[0024] In some examples, the PBCH may be transmitted based at least in part on the SS block index. In some examples, the SS block may further include a PSS and an SSS, where the SSS is determined based at least in part on the PCI of the base station. In some examples, the SS block may further include a PSS and an SSS, with the SSS transmitted as an additional DMRS for the PBCH on at least one port used to transmit the SSS and PBCH. obtain. In some examples, an SS block may be one SS block among multiple SS blocks sent in a BCH TTI. Some examples of the present methods, apparatus, and non-transitory computer-readable media include encoding an SS block index in at least one modulation symbol; transmitting a TSS on resources allocated for the SS block; and wherein the TSS includes at least one modulation symbol. In some cases, at least one modulation symbol includes a quadrature phase shift keying (QPSK) symbol.

[0025] In one example, another method for wireless communication at a UE is described. The method includes receiving an SS block including a TSS, a PSS, and an SSS; , BCH TTIs, and demodulating the TSS based at least in part on the SSS.

[0026] In one example, another apparatus for wireless communication at a UE is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions are for receiving an SS block including a TSS, a PSS, and an SSS; the TSS being based, at least in part, on an SS block index associated with the SS block; It may be executable by the processor to determine the timing of the SS blocks within the BCH TTI and demodulate the TSS based at least in part on the SSS.

[0027] In one example, another apparatus for wireless communication at a UE is described. The apparatus includes means for receiving an SS block including a TSS, a PSS, and an SSS; and means for demodulating the TSS based at least in part on the SSS.

[0028] In one example, a non-transitory computer-readable medium storing computer-executable code for wireless communication at a UE is described. The code receives an SS block including a TSS, a PSS, and an SSS; the TSS is based, at least in part, on an SS block index associated with the SS block; It may be executable by the processor to determine the timing of the SS blocks within the BCH TTI and demodulate the TSS based at least in part on the SSS.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PBCH, and receiving the TSS and PBCH may include one or more It may involve receiving the TSS time division multiplexed with the PBCH on the same set of frequency subcarriers. In some examples, receiving the TSS, the SSS, and the PBCH may include receiving the PBCH and the TSS after the SSS.

[0030] Some examples of the methods, apparatus, and non-transitory computer-readable media described above use the SS block index encoded in the waveform signature of the TSS or in at least one modulation symbol in the TSS. It may further include a process, feature, means or instructions for receiving.

[0031] Some examples of the methods, apparatus, and non-transitory computer-readable media described above describe a process for identifying beams from which SS blocks are received based at least in part on SS block indices. , features, means, or instructions.

[0032] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PBCH, which may be received based at least in part on the SS block index. , the present methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for decoding PBCH based at least in part on the SS block index.

[0033] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SSS may be determined based at least in part on the PCI of the base station.

[0034] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PBCH, and the method, apparatus, and non-transitory computer-readable medium include the SSS may further include a process, feature, means, or instructions for demodulating the PBCH based at least in part on .

[0035] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may be one SS block of multiple SS blocks within a BCH TTI.

[0036] In one example, another method for wireless communication at a base station is described. The method includes allocating resources for an SS block; determining a TSS based at least in part on an SS block index associated with the SS block; transmitting the TSS, the PSS, and the SSS on the resources allocated for the SS block shown; and the TSS on at least one port used for transmitting the TSS and SSS transmitted as DMRS for

[0037] In one example, another apparatus for wireless communication at a base station is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions allocate resources for an SS block, determine a TSS based at least in part on an SS block index associated with the SS block, and the SS block index indicates timing of the SS block within a BCH TTI. , transmitting the TSS, the PSS, and the SSS on resources allocated for the SS block; and transmitting the TSS on at least one port used for transmitting the TSS and the SSS. transmitted as a DMRS for.

[0038] In one example, another apparatus for wireless communication at a base station is described. The apparatus includes means for allocating resources for SS blocks; means for determining a TSS based at least in part on an SS block index associated with the SS block; means for transmitting the TSS, the PSS, and the SSS on resources allocated for the SS block that indicate the timing of the block; and at least the SSS is used to transmit the TSS and the SSS. transmitted as DMRS for TSS on one port.

[0039] In one example, a non-transitory computer-readable medium storing computer-executable code for wireless communication at a base station is described. The code allocates resources for an SS block, determines a TSS based at least in part on an SS block index associated with the SS block, and the SS block index indicates timing of the SS block within a BCH TTI. , transmitting the TSS, the PSS, and the SSS on resources allocated for the SS block; and transmitting the TSS on at least one port used for transmitting the TSS and the SSS. transmitted as a DMRS for.

[0040] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PBCH, and transmitting the TSS and the PBCH may involve one or more It may include time division multiplexing the TSS with the PBCH on the same set of frequency subcarriers. In some examples, transmitting TSS, SSS, and PBCH may include transmitting PBCH and TSS after SSS.

[0041] Some examples of the methods, apparatus, and non-transitory computer-readable media described above encode the SS block index in the waveform signature of the TSS, or in at least one modulation symbol in the TSS. may further include a process, feature, means, or instructions for including the SS block index in the .

[0042] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block index may further identify the beam on which the SS block is transmitted.

[0043] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PBCH, which is transmitted based at least in part on the SS block index. obtain.

[0044] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SSS may be determined based at least in part on the PCI of the base station.

[0045] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PBCH, and the SSS is used to transmit the SSS and the PBCH. Sent as DMRS for PBCH on at least one port.

[0046] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may be one SS block among multiple SS blocks transmitted within the BCH TTI. .

[0047] In one example, another method for wireless communication at a UE is described. The method includes: receiving an SS block including a TSS including at least one modulation symbol; decoding an SS block index encoded in the at least one modulation symbol; , identifying the timing of the SS blocks within the BCH TTI.

[0048] In one example, another apparatus for wireless communication at a UE is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions are based at least in part on receiving an SS block including a TSS including at least one modulation symbol, decoding an SS block index encoded in the at least one modulation symbol, and the SS block index. , identifying the timing of the SS blocks within the BCH TTI.

[0049] In one example, another apparatus for wireless communication at a UE is described. The apparatus comprises means for receiving an SS block including a TSS including at least one modulation symbol; means for decoding an SS block index encoded in the at least one modulation symbol; and, based in part, means for identifying timing of SS blocks within the BCH TTI.

[0050] In one example, a non-transitory computer-readable medium storing computer-executable code for wireless communication at a UE is described. The code is based at least in part on receiving an SS block including a TSS including at least one modulation symbol, decoding an SS block index encoded in the at least one modulation symbol, and the SS block index. , identifying the timing of the SS blocks within the BCH TTI.

[0051] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the at least one modulation symbol is a quadrature phase shift keying (QPSK) symbol or a binary phase shift keying (BPSK) symbol. can include

[0052] Some examples of the methods, apparatus, and non-transitory computer-readable media described above are beams used to receive multiple SS blocks, including the above SS blocks, within a BCH TTI. It may further include a process, feature, means, or instructions for decoding at least one parameter of the sweep configuration from at least one modulation symbol. In some examples, at least one parameter of the beam sweep configuration may include the number of beams in the SS blockburst set, or the periodicity of the SS blockburst set, or a combination thereof.

[0053] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block index is a polar code, or a Reed-Muller code, or a Golay code, or a tail-biting convolutional code (TBCC). ) in at least one modulation symbol.

[0054] Some examples of the methods, apparatus, and non-transitory computer-readable media described above decode a cyclic redundancy check (CRC) for an SS block index encoded in at least one modulation symbol. and verifying the SS block index based at least in part on the CRC.

[0055] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PSS, an SSS, and a PBCH.

[0056] In one example, another method for wireless communication at a base station is described. The method, allocating resources for the SS block, encoding an SS block index in at least one modulation symbol, and for the SS block, wherein the SS block index indicates timing of the SS block within a BCH TTI and transmitting a TSS including at least one modulation symbol on the allocated resource.

[0057] In one example, another apparatus for wireless communication at a base station is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions allocate resources for the SS block, encode the SS block index in at least one modulation symbol, and for the SS block, the SS block index indicating the timing of the SS block within the BCH TTI. transmitting a TSS including at least one modulation symbol on the allocated resource.

[0058] In one example, another apparatus for wireless communication at a base station is described. The apparatus comprises means for allocating resources for an SS block; means for encoding an SS block index in at least one modulation symbol; the SS block index indicating timing of the SS block within a BCH TTI; and means for transmitting a TSS including at least one modulation symbol on resources allocated for the SS block.

[0059] In one example, a non-transitory computer-readable medium storing computer-executable code for wireless communication at a base station is described. For the SS block, the code allocates resources for the SS block, encodes the SS block index in at least one modulation symbol, and the SS block index indicates the timing of the SS block within the BCH TTI. transmitting a TSS including at least one modulation symbol on the allocated resource.

[0060] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the at least one modulation symbol may include a QPSK symbol or a BPSK symbol.

[0061] Some examples of the methods, apparatus, and non-transitory computer-readable media described above are beams used to transmit multiple SS blocks, including the above SS blocks, within a BCH TTI. It may further include a process, feature, means, or instructions for encoding at least one parameter of the sweep configuration in at least one modulation symbol.

[0062] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, at least one parameter of the beam sweep configuration is the number of beams in the SS blockburst set, or the number of beams in the SS blockburst set. It may include set periodicity, or a combination thereof.

[0063] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block index is at least 1 using a Polar code, or a Reed-Muller code, or a Golay code, or a TBCC. can be encoded in one modulation symbol.

[0064] Some examples of the methods, apparatus, and non-transitory computer-readable media described above include generating a CRC for the SS block index and performing the CRC on at least one modulation symbol with the SS block index. may further include processes, features, means, or instructions for performing the encoding.

[0065] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PSS, an SSS, and a PBCH.

[0066] In one example, another method for wireless communication at a UE is described. The method, receiving an SS block including a TSS and a PBCH, and demodulating the TSS and PBCH based, at least in part, on a DMRS, wherein the TSS is based, at least in part, on an SS block index associated with the SS block. and identifying the timing of the SS blocks within the BCH TTI based at least in part on the SS block index.

[0067] In one example, another apparatus for wireless communication at a UE is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions are to receive an SS block including a TSS and a PBCH, and demodulate the TSS and PBCH based at least in part on a DMRS, with the TSS based at least in part on an SS block index associated with the SS block. and identifying the timing of the SS block within the BCH TTI based at least in part on the SS block index.

[0068] In one example, another apparatus for wireless communication at a UE is described. The apparatus includes means for receiving an SS block including a TSS and a PBCH; and a TSS and a PBCH based at least in part on a DMRS, wherein the TSS is based at least in part on an SS block index associated with the SS block. and means for identifying the timing of the SS block within the BCH TTI based at least in part on the SS block index.

[0069] In one example, a non-transitory computer-readable medium storing computer-executable code for wireless communication at a UE is described. The code receives an SS block including a TSS and a PBCH, and the TSS demodulates the TSS and PBCH based at least in part on a DMRS based at least in part on an SS block index associated with the SS block. and identifying the timing of the SS block within the BCH TTI based at least in part on the SS block index.

[0070] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PSS and an SSS, and the DMRS may include an SSS.

[0071] In one example, another method for wireless communication at a base station is described. The method includes allocating resources for an SS block, determining a TSS based at least in part on an SS block index associated with the SS block, the SS block index indicating timing of the SS block within a BCH TTI. , transmitting the TSS and the PBCH on resources allocated for the SS block, and the TSS on at least one port where the SS block is used to transmit the DMRS, the TSS, and the PBCH and the same DMRS for PBCH.

[0072] In one example, another apparatus for wireless communication at a base station is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions allocate resources for an SS block, determine a TSS based at least in part on an SS block index associated with the SS block, and the SS block index indicates timing of the SS block within a BCH TTI. , transmitting the TSS and the PBCH on resources allocated for the SS block; and the TSS on at least one port where the SS block is used to transmit the DMRS, the TSS, and the PBCH. and including the same DMRS for PBCH.

[0073] In one example, another apparatus for wireless communication at a base station is described. The apparatus includes means for allocating resources for SS blocks; means for determining a TSS based at least in part on an SS block index associated with the SS block; Means for transmitting the TSS and PBCH on resources allocated for the SS block that indicate block timing, and the SS block is used to transmit the DMRS, the TSS, and the PBCH. including the same DMRS for TSS and PBCH on at least one port.

[0074] In one example, a non-transitory computer-readable medium storing computer-executable code for wireless communication at a base station is described. The code allocates resources for an SS block, determines a TSS based at least in part on an SS block index associated with the SS block, and the SS block index indicates timing of the SS block within a BCH TTI. , transmitting the TSS and the PBCH on resources allocated for the SS block, and the TSS on at least one port where the SS block is used to transmit the DMRS, the TSS, and the PBCH and including the same DMRS for PBCH.

[0075] In some examples of the methods, apparatus, and non-transitory computer-readable media described above, the SS block may further include a PSS and an SSS, and the DMRS may include an SSS.

[0076] The foregoing has outlined rather broadly the features and technical advantages of examples according to the disclosure in order that the detailed description that follows may be better understood. Additional features and advantages are described below. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The nature of the concepts disclosed herein, both their organization and method of operation, together with associated advantages, may be better understood from the following description when considered in conjunction with the accompanying figures. Each of the figures is provided for purposes of illustration and description only, and not as a definition of the limitations of the claims.

[0077] A further understanding of the nature and advantages of the present invention may be realized by reference to the following drawings. In the accompanying figures, similar components or features may have the same reference label. Additionally, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes between those similar components. Where only the first reference label is used herein, the description is applicable to any one of the similar components having the same first reference label regardless of the second reference label. .
1 illustrates an example wireless communication system, in accordance with various aspects of the present disclosure. FIG. 4 illustrates an example timeline of SS blocks within a periodic BCH TTI, in accordance with various aspects of the present disclosure; FIG. 1 illustrates an example mmW wireless communication system, in accordance with various aspects of the present disclosure; FIG. FIG. 10 is an exemplary time-frequency plot of SS blocks, in accordance with various aspects of the present disclosure; FIG. FIG. 10 is an exemplary time-frequency plot of SS blocks, in accordance with various aspects of the present disclosure; FIG. FIG. 10 is an exemplary time-frequency plot of SS blocks, in accordance with various aspects of the present disclosure; FIG. FIG. 10 is an exemplary time-frequency plot of SS blocks, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications, including various UE wireless communication managers, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications, including various UE wireless communication managers, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications, including various UE wireless communication managers, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications, including various UE wireless communication managers, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications including various base station wireless communication managers, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications including various base station wireless communication managers, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications including various base station wireless communication managers, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of an apparatus for use in wireless communications including various base station wireless communication managers, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of a UE for use in wireless communications, in accordance with various aspects of the present disclosure; FIG. 1 is a block diagram of a base station for use in wireless communications, in accordance with various aspects of the present disclosure; FIG. 4 is a flowchart illustrating an example method for wireless communication at a UE, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a UE, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a base station, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a base station, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a UE, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a base station, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a UE, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a base station, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a UE, in accordance with various aspects of the present disclosure. 4 is a flowchart illustrating an example method for wireless communication at a base station, in accordance with various aspects of the present disclosure.

[0098] The described techniques relate to improved methods, systems, and devices or apparatus that support communicating a synchronization signal (SS) block index in a timing synchronization signal (TSS). In general, the described techniques relate to a base station transmitting a set of SS blocks each carrying a TSS containing an SS block index, and a user equipment (UE) timing the TSS with respect to a broadcast channel transmission time interval (BCH TTI). The SS block index may be identified and used to determine. Beneficially, a UE may use TTI timing to reduce the amount of time required to acquire and synchronize with a base station.

[0099] Wireless communication systems (eg, mmW systems) may utilize directional or beamformed transmissions (eg, beams) for communication. For example, a base station may transmit signals on multiple beams associated with different directions. In some cases, a base station may engage in beam sweeping over some (or all) of the possible beams to transmit messages or signals destined for UEs that are distributed throughout the coverage area of the base station. be. In some cases, the base station may transmit multiple instances of the SS block on different beams during the periodic BCH TTI. In other cases, the base station may transmit multiple instances of the SS block on the same beam or in an omnidirectional manner. A UE that receives one of the SS blocks can acquire the network associated with the base station. However, before or during network acquisition, the UE may determine the timing of one or more SS blocks it receives. In some cases, the timing of an SS block may be determined based at least in part on an SS block index that conveys the timing of said SS block within a sequence of SS blocks.

[0100] The techniques described in this disclosure use the TSS to carry the SS block indices. TSS is sometimes called a tertiary synchronization signal or an extended synchronization signal because it augments the primary and secondary synchronization signals (PSS and SSS) and allows for more efficient synchronization between UEs and base stations. obtain. TSS may be sent together with other synchronization signals such as PSS and SSS, which carry time synchronization (eg, OFDM symbol timing, but not necessarily OFDM symbol index or SS block index) at different granularities. For example, a base station may periodically transmit 40 SS blocks. All or many of these SS blocks may contain equally transmitted signals such as PSS/SSS and PBCH. Therefore, these blocks may not be distinguishable. In contrast, the TSS can also be sent in every SS block, but can vary from block to block to carry the SS block index.

[0101] In one example, an SS block may carry one or more synchronization signals (such as PSS, SSS, and/or TSS). If the base station coherently transmits (e.g., from the same antenna port) all signals in the SS block, the UE will see that the synchronization signals are quasi-colocated and therefore delay spread, Doppler spread, Doppler shift, etc., coherent signal It can be assumed that it can have properties. Based on this assumption, the UE may be able to synchronize more quickly with the base station by, for example, using the SSS as the reference for the TSS, which in turn serves as the reference for the PBCH. . The UE may then use the TSS and SSS together to demodulate the PBCH. For example, the UE determines the signal-to-noise ratio (SNR) and/or the signal-to-noise-plus-interference ratio (SINR) of the TSS, SSS, or both transmitted over the wireless channel, and demodulates the PBCH. Use the determined SNR and/or SINR. In another example, the UE uses the TSS, SSS, or both to obtain a channel estimate (eg, an estimate of the phase shift caused by transmission over the wireless channel to the TSS, SSS, or both) and demodulate the PBCH using the channel estimate. Although it is possible for the PBCH to change from block to block, determining the SS block index via PBCH changes can be computationally complex, so to convey the SS block index instead TSS can be used. In this case, PBCH changes may be used to verify the SS block index determined using the TSS.

[0102] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, methods described may be performed in a different order than that described, and various acts may be added, omitted, or combined. Also, features described with respect to some examples may be combined in some other examples.

[0103] FIG. 1 illustrates an example wireless communication system 100, in accordance with various aspects of the present disclosure. Wireless communication system 100 includes base stations 105 , UEs 115 and core network 130 . In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE), LTE Advanced (LTE-A) network, or New Radio (NR) network. In some cases, wireless communication system 100 may support enhanced broadband communications, ultra-reliable (ie, mission-critical) communications, low-latency communications, and communications using low-cost and low-complexity devices.

[0104] Base station 105 may communicate wirelessly with UE 115 via one or more base station antennas. Each base station 105 may provide communication coverage for a respective geographic coverage area 110 . Communication link 125 shown in wireless communication system 100 may include uplink (UL) transmissions from UE 115 to base station 105 or downlink (DL) transmissions from base station 105 to UE 115 . Control information and data may be multiplexed on the uplink channel or downlink according to various techniques. Control information and data may be multiplexed over the downlink channels using, for example, time division multiplexing (TDM), frequency division multiplexing (FDM), or hybrid TDM-FDM techniques. In some examples, control information sent during a TTI of a downlink channel is distributed between different control regions (e.g., between a common control region and one or more UE-specific control regions) in a cascaded fashion. can be

[0105] UEs 115 may be dispersed throughout the wireless communication system 100, and each UE 115 may be stationary or mobile. UE 115 includes mobile stations, subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, It may also be called a remote terminal, handset, user agent, mobile client, client or some other suitable term. UE 115 may also be a cellular phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, tablet computer, laptop computer, cordless phone, personal electronic device, handheld device, personal computer, wireless local loop (WLL). Stations, Internet of things (IoT) devices, Internet of Everything (IoE) devices, Machine Type Communication (MTC) devices, appliances, automobiles, and so on.

[0106] In some cases, UE 115 may be able to communicate directly with other UEs (eg, using peer-to-peer (P2P) or device-to-device (D2D) protocols). One or more of the groups of UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the cell. Other UEs 115 in such a group may be outside the geographical coverage area 110 of the cell or otherwise unable to receive transmissions from the base station 105 . In some cases, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some cases, base station 105 facilitates scheduling resources for D2D communications. In other cases, D2D communication occurs independently of base station 105 .

[0107] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automatic machine-to-machine communication, ie, machine-to-machine (M2M) communication. M2M or MTC may refer to data communication technologies that allow devices to communicate with each other or with a base station without human intervention. For example, M2M or MTC incorporates sensors or meters to measure or capture information and relay that information to a central server or application program where the information can be utilized, or by a human interacting with the program or application. It can also refer to communications from a device that presents information to Some UEs 115 may be designed to collect information or enable automated behavior of the machine. Examples of applications for MTC devices are smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, as well as transaction-based business charging.

[0108] In some cases, MTC devices may operate using half-duplex (one-way) communication at reduced peak rates. MTC devices may also be configured to enter a power saving "deep sleep" mode when not engaged in active communication. In some cases, MTC or IoT devices may be designed to support mission-critical functions, and wireless communication systems may be configured to provide ultra-reliable communication for these functions.

[0109] Base stations 105 may communicate with core network 130 and with each other. For example, base station 105 may interface with core network 130 through backhaul link 132 (eg, S1, etc.). Base stations 105 may communicate with each other either directly or indirectly (eg, through core network 130) via backhaul links 134 (eg, X2, etc.). Base station 105 may perform radio configuration and scheduling for communication with UE 115 or may operate under the control of a base station controller (not shown). In some examples, base station 105 may be a macrocell, small cell, hotspot, and the like. A base station 105 may also be referred to as an eNodeB (eNB) or gNodeB (gNB).

[0110] Base station 105 may be connected to core network 130 by an S1 interface. Core network may include at least one Mobility Management Entity (MME), at least one Serving Gateway (S-GW), and at least one Packet Data Network (PDN) Gateway (P-GW) Evolved Packet It can be a core (EPC). MME may be a control node that handles signaling between UE 115 and EPC. All user Internet Protocol (IP) packets may be forwarded through the S-GW, which itself may be connected to the P-GW. A P-GW may provide IP address allocation as well as other functions. A P-GW may be connected to a network operator IP service. Operator IP services may include Internet, Intranet, IP Multimedia Subsystem (IMS), and Packet Switched (PS).

[0111] Core network 130 may provide user authentication, access authorization, tracking, IP connectivity, and other access, routing, or mobility functions. At least some of the network devices, such as base stations 105, may include subcomponents such as access network entities, which may be an example of access node controllers (ANCs). Each access network entity may communicate with several UEs 115 through several other access network transmission entities, each of which may be an example of a smart radio head, or transmit/receive point (TRP). In some configurations, the various functions of each access network entity or base station 105 are distributed across various network devices (eg, radio head and access network controller) or in a single network device (eg, base station 105).

[0112] From time to time, the UE 115 may perform initial access (acquisition) procedures with the base station 105, synchronize with the base station 105, or measure signals transmitted by the base station 105. When performing an initial access procedure (or synchronizing or performing measurements), UE 115 may search the wireless spectrum for SS blocks transmitted by base station 105 . The SS block is information that can be used by UE 115 to synchronize UE 115 with base station 105 so that UE 115 can communicate with base station 105 (or via a network to which base station 105 provides access to). can include After synchronizing with base station 105 , UE 115 may initiate random access procedures with base station 105 by sending a random access preamble to base station 105 .

[0113] FIG. 2 illustrates an example timeline 200 of SS blocks 205 within a periodic BCH TTI, in accordance with various aspects of the present disclosure. SS block 205 may be transmitted by a base station, which may be an example of one or more aspects of base station 105 described with reference to FIG. A UE may receive one or more of the SS blocks 205 . UE may be an example of one or more aspects of UE 115 described with reference to FIG.

[0114] An SS block 205 may include multiple SS blocks 205 that are transmitted consecutively during an SS block burst 210. FIG. An SS block burst 210 may include L SS blocks 205 . In some examples, SS blocks 205 within SS block burst 210 may be transmitted on different beams using beam sweeping. In other examples, SS blocks 205 within SS block burst 210 may be transmitted on the same beam or in an omnidirectional manner. In some examples, SS block 205 may include TSS and one or more of PSS, SSS, or PBCH. In some examples, the PBCH may carry the Master Information Block (MIB) and the TSS. A TSS may carry an SS block index or other timing information. In one example, a TSS may be a set of coded bits to be sent using modulation symbols, where the coded bits encode at least the SS block indices. In some examples, the coded bits may include one or more other parameters of the beam sweep configuration of base station 105 . The one or more parameters may include the burst set periodicity, the number of beams in the burst set, and the like. In some examples, a burst set may be defined as a set of periodically transmitted beams carrying SS block 205 in the coverage area of base station 105 , for base station 105 .

[0115] The SS block index may indicate the timing of the TSS (or SS block 205) within the sequence of SS blocks 205 (eg, the timing of the TSS (or SS block 205) within the SS block burst 210). The SS block index may therefore also indicate the timing of the SS block 205 within the SS block burst set 215 and within the BCH TTI 220 (although in some cases the SS block within the SS block burst set 215 or BCH TTI 220 205, the timing indicated by the SS block index may need to be combined with other timing information). In some examples, the SS block index may also indicate the beam on which the SS block 205 is transmitted. In some examples, the SS block index may be encoded in the waveform signature of the TSS (eg, the SS block index may be sequence-based) or included in at least one modulation symbol in the TSS ( For example, the SS block index may be message-based). In some examples, the SSS of SS block 205 may be based at least in part on the physical cell identity (PCI) of the base station that transmitted SS block 205 .

[0116] Multiple SS block bursts 210 may be transmitted within an SS block burst set 215. FIG. In some examples, SS block bursts 210 in SS block burst set 215 may be associated with different PBCH redundancy versions (RVs). In some cases, SS block burst set 215 may include n SS block bursts 210 . The SS block bursts 210 within the SS block burst set 215 may be separated in time.

[0117] Multiple SS block burst sets 215 may be transmitted within the BCH TTI 220. In this disclosure, the BCH TTI is intended to include some time interval during which multiple SS blocks are transmitted with the same system information, regardless of whether the SS blocks are allocated in SS block burst 210 or SS block burst set 215. defined as In some examples, SS block burst set 215 in BCH TTI 220 may be associated with different SSSs. In some cases, BCH TTI 220 may include m SS block burst sets 215 .

[0118] When m = 2, n = 4, and L = 14, the number of SS blocks 205 transmitted in the BCH TTI 220 may be 112 (eg, mnL = 112). In other examples, the values of m, n, and L can be higher or lower. Regardless, a UE receiving one of the SS blocks 205 may need to determine the timing of the SS block 205 within the SS block burst 210, SS block burst set 215, and/or BCH TTI 220.

[0119] FIG. 3 illustrates an example mmW wireless communication system 300, in accordance with various aspects of the present disclosure. mmW wireless communication system 300 may include base station 305 and UE 315, which may be examples of aspects of one or more of base station 105 or UE 115 described with reference to FIG.

[0120] To overcome signal attenuation and path loss at mmW frequencies, base station 305 and UE 315 may communicate with each other over one or more beams (ie, directional beams). As shown, a base station 305 may operate on multiple beams 320 (eg, a first beam 320-a, a second beam 320-b, a third beam 320-c, and a fourth beam 320-c). 320-d, a fifth beam 320-e, and a sixth beam 320-f). In other examples, base station 305 may transmit on more or less beams 320 .

In some examples, base station 305 may transmit an SS block on each of beams 320 and UE 315 may receive an SS block on one of beams 320 . UE 315 may determine the timing of the SS block and the beam 320 on which the SS block is received in order to acquire the network to which base station 305 provides access. In some examples, the UE 315 determines the timing of the SS block based at least in part on the SS block index carried by the TSS contained in the SS block and/or identifies the beam 320 from which the SS block is received. can.

[0122] Figures 4-7 show examples of time-frequency plots of SS blocks with various configurations.

[0123] FIG. 4 illustrates an exemplary time-frequency plot 400 of the SS block 405, in accordance with various aspects of the present disclosure. SS block 405 comprises PSS 410, SSS 415, and a first portion of PBCH 420--which are time division multiplexed and transmitted on the same set of one or more frequency subcarriers in the order shown in FIG. a, the TSS 425, and the second portion 420-b of the PBCH.

[0124] FIG. 5 illustrates an example time-frequency plot 500 of the SS block 505, in accordance with various aspects of the present disclosure. SS block 505 comprises PSS 520, SSS 525, and a second portion of PBCH 510--which are time division multiplexed and transmitted on the same set of one or more frequency subcarriers in the order shown in FIG. b. SS block 505 may also include first portion 510 - a of PBCH and TSS 515 that are frequency division multiplexed and transmitted before PSS 520 . TSS 515 is thus transmitted on a first set of one or more frequency subcarriers that overlap with a second set of frequency subcarriers on which PSS 520, SSS 525 and PBCH 510 are transmitted.

[0125] FIG. 6 illustrates an example time-frequency plot 600 of the SS block 605, in accordance with various aspects of the present disclosure. SS block 605 includes PSS 610, first portion of PBCH 615-a, SSS 620, TSS 625, and second portion of PBCH 615, which are time division multiplexed and transmitted in the order shown in FIG. -b.

[0126] FIG. 7 illustrates an exemplary time-frequency plot 700 of the SS block 705, in accordance with various aspects of the present disclosure. SS block 705 includes PSS 710 and SSS 715 that are time division multiplexed and transmitted over a range of frequency subcarriers (or resource blocks) in the order shown in FIG. SS block 705 may also include a TSS transmitted on the first set of frequency subcarriers interleaved with the second set of frequency subcarriers over which the PBCH is transmitted. The interleaved frequency subcarriers 720-a and 720-b over which the TSS and PBCH are transmitted may be frequency division multiplexed with the PSS 710 and SSS 715, and in some cases the TSS and PBCH over there. The interleaved frequency subcarriers 720-a and 720-b transmitted at may include frequency subcarriers on both ends of the range of frequency subcarriers over which PSS 710 and SSS 715 are transmitted.

[0127] In some examples, the TSS described with reference to FIGS. 2 and any of FIGS. 4-7 is based at least in part on the timing of the TSS within the BCH TTI and/or may be based, at least in part, on the SS block index associated with the SS block to be processed. The SS block index may indicate the timing of the TSS within the BCH TTI (eg, the SS block index may indicate the timing of the TSS within the BCH TTI partially or completely). TSS may be transmitted (used) as DMRS for PBCH on at least one port used to transmit TSS and PBCH. For example, the TSS may be coherently transmitted from the same port used to transmit transmissions over the PBCH. In the examples shown in FIGS. 4-6, SSS may also be transmitted (used) as DMRS for PBCH on at least one port used to transmit SSS and PBCH. For example, SSS may be coherently transmitted from the same port used to transmit transmissions over PBCH. In some examples, TSS and PBCH may be transmitted within the same SS block. In other examples, TSS and PBCH may not be transmitted in the same SS block.

[0128] In some examples, the SSS described with reference to any of FIG. 2, FIG. 4, and FIG. It may be transmitted (used) as DMRS for TSS. Equivalently, the TSS can be transmitted/detected coherently with the SSS. The TSS may be based at least in part on the timing of the TSS within the BCH TTI and/or based at least in part on the SS block index associated with the SS block in which the TSS is transmitted. SSS may also be transmitted (used) as DMRS for PBCH on at least one port used to transmit SSS and PBCH. In some examples, TSS and PBCH may be transmitted within the same SS block. In other examples, TSS and PBCH may not be transmitted in SS blocks.

[0129] In some examples, the DMRS transmitted in the SS blocks described with reference to any of FIGS. It may be transmitted (used) as DMRS for both PBCH. In the examples described with reference to FIGS. 4 and 6, DMRS may include SSS.

[0130] In some examples, a TSS may be message-based and include at least one modulation symbol with an SS block index encoded therein. At least one modulation symbol may include, for example, a QPSK symbol or a BPSK symbol. In some examples, the SS block index may be encoded in at least one modulation symbol using a polar code, or Reed-Muller code, or Golay code, or TBCC. In some examples, a cyclic redundancy check (CRC) for the SS block index may be encoded in at least one modulation symbol and used by the UE to verify the SS block index. In one example, the information bits of the TSS that indicate the SS block index can be encoded using a Polar code, or Reed-Muller code, or Golay code, or TBCC, etc., and a CRC algorithm is performed on the information bits to determine the SS A CRC of the block index may be generated. One or more bits of the CRC may be attached to the information bits to form a bit sequence for encoding (eg, polar encoding, etc.). A CRC may be encoded along with the SS block index in at least one modulation symbol. UE 315 may use the CRC to verify whether the decoding of the SS block index is successful. In some examples, the information bits are used to transmit/receive multiple SS blocks, such as, for example, the number of beams in the SS block burst set, or the periodicity of the SS block burst set, etc., or a combination thereof. at least one parameter of the beam sweep configuration to be performed.

[0131] FIG. 8 illustrates a block diagram 800 of an apparatus 805 for use in wireless communications, according to various aspects of the present disclosure. Apparatus 805 may be an example of aspects of one or more of the UEs described with reference to FIGS. Device 805 may include receiver 810 , UE wireless communication manager 815 and transmitter 820 . Device 805 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0132] Receiver 810 may receive data or control signals or information (ie, transmissions), some or all of which may be associated with various information channels (eg, data channels, control channels, etc.). Received signals or information, or measurements performed thereon, may be passed to other components of device 805 . Receiver 810 may include one or more antennas.

[0133] Transmitter 820 may transmit data or control signals or information (i.e., transmissions) generated by other components of device 805, some or all of which may be in various information channels (e.g., data channel, control channel, etc.). In some examples, transmitter 820 may be co-located with receiver 810 at a transceiver. For example, transmitter 820 and receiver 810 may be an example of aspects of transceiver 1830 described with reference to FIG. Transmitter 820 may include one or more antennas that may be separate from (or shared with) the one or more antennas used by receiver 810 .

[0134] At least some of the UE wireless communication manager 815 and/or its various subcomponents may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented in software executed by a processor, the functionality of at least some of the UE wireless communication manager 815 and/or its various sub-components may be implemented by a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any of those designed to perform the functions described in this disclosure. Any combination may be performed.

[0135] UE wireless communication manager 815 and/or at least some of its various subcomponents are distributed such that portions of the functionality are implemented in different physical locations by one or more physical devices. can be physically located at various locations, including In some examples, at least some of the UE wireless communication manager 815 and/or its various subcomponents may be separate and discrete components according to various aspects of the present disclosure. In other examples, UE wireless communication manager 815 and/or at least some of its various subcomponents may include, but are not limited to, I/O components, transceivers, other computing device, one or more other components described in this disclosure, or a combination thereof. UE wireless communication manager 815 receives one or more of the SS blocks described with reference to FIGS. can be used to determine timing. A TSS may be based at least in part on an SS block index associated with the SS block. In some examples, the UE wireless communication manager 815 may be used to receive a TSS that is outside the SS block and based at least in part on the timing of the TSS within the BCH TTI.

[0136] FIG. 9 illustrates a block diagram 900 of a wireless device 905 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Wireless device 905 may be an example of aspects of wireless device 805 or UE described with reference to FIG. Wireless device 905 may include receiver 910 , UE wireless communication manager 915 , and transmitter 920 . Wireless device 905 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0137] The receiver 910 may receive packets, user data, or control information associated with various information channels (eg, information such as control channels, data channels, and information related to, for example, timing synchronization. Receiver 910 may be an example of aspects of transceiver 1830 described with reference to Figure 18. Receiver 910 may transmit a single antenna or set of antennas. available.

[0138] Transmitter 920 may transmit signals generated by other components of the device. In some examples, transmitter 920 may be co-located with receiver 910 in a transceiver module. For example, transmitter 920 may be an example of an aspect of transceiver 1835 described with reference to FIG. Transmitter 920 may utilize a single antenna or a set of antennas.

[0139] UE wireless communication manager 915 may be an example of aspects of the UE wireless communication manager described with reference to FIG. UE wireless communication manager 915 may include BCH TTI reception manager 925 , synchronization manager 930 , PBCH demodulator 935 , optional SS block reception manager 940 and optional beam identifier 945 . Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0140] In a first example of UE wireless communication manager 915, BCH TTI reception manager 925 may be used to receive TSS and PBCH, eg, as described with reference to FIGS. . The TSS may be based at least in part on the timing of the TSS within the BCH TTI. Synchronization manager 930 may be used to determine the timing of the TSS within the BCH TTI, eg, as described with reference to FIGS. 2-7. A PBCH demodulator 935 may be used to demodulate the PBCH based at least in part on the TSS, as described herein with reference to FIGS. 2-7, for example.

[0141] In a second example of UE wireless communication manager 915, BCH TTI reception manager 925 or SS block reception manager 940 includes TSS and PBCH, eg, as described with reference to FIGS. It can be used to receive SS blocks. A TSS may be based at least in part on an SS block index associated with the SS block. In some examples, the TSS is at least partially associated with the SS block index because the SS block index is encoded in the waveform signature of the TSS or because the SS block index is included in at least one modulation symbol in the TSS. can be based. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, an SS block may further include a PSS and an SSS. The SSS may be based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI. In some examples, a TSS may include at least one modulation symbol. In some examples, at least one modulation symbol may include a QPSK symbol or a BPSK symbol.

[0142] Also in a second example of the UE wireless communication manager 915, the synchronization manager 930 performs BCH TTI synchronization based at least in part on the SS block index, eg, as described with reference to FIGS. , may be used to determine the timing of the SS block and thus the timing of the TSS. A PBCH demodulator 935 may be used to demodulate the PBCH based at least in part on the TSS, as described herein with reference to FIGS. 2-7, for example. For example, TSS may be transmitted as DMRS for PBCH. PBCH demodulator 935 determines the signal-to-noise ratio (SNR) and/or signal-to-noise-plus-interference ratio (SINR) of the TSS transmitted over the wireless channel, and uses the determined SNR and/or SINR. to demodulate the PBCH. In another example, the PBCH demodulator 935 uses the TSS to generate a channel estimate (eg, an estimate of the phase shift induced to the TSS by transmission over the wireless channel) and converts the channel estimate to may be used to demodulate the PBCH. When the SS block includes a PSS and an SSS, the PBCH may also be demodulated based at least in part on the SSS. Beam identifier 945 is used to identify the beam on which the SS block is transmitted, possibly based at least in part on the SS block index, eg, as described with reference to FIGS. can be A TSS payload decoder 950 may be used to decode the SS block indices encoded in at least one modulation symbol, eg, as described with reference to FIGS. 2-7.

[0143] In some examples, receiving the TSS and the PBCH may include receiving the TSS time division multiplexed with the PBCH on the same set of one or more frequency subcarriers. In some of these examples, an SS block may further include a PSS and an SSS, and receiving TSS, SSS, and PBCH may include receiving SSS followed by PBCH and TSS. .

[0144] In some examples, receiving the TSS and the PBCH includes the first set of one or more frequency subcarriers that overlap with the second set of one or more frequency subcarriers on which the PBCH is received. receiving a TSS on a set of 1. The first set of one or more frequency subcarriers may be different from the second set of one or more frequency subcarriers. In some examples, receiving the TSS and the PBCH may further include receiving the TSS frequency division multiplexed with at least a portion of the PBCH. In some examples, the SS block may further include PSS and SSS, and receiving SSS and PBCH may include receiving a second portion of PBCH after SSS.

[0145] In some examples, receiving the TSS and the PBCH comprises one or more frequency subcarriers interleaved with a second set of one or more frequency subcarriers on which the PBCH is received. It may include receiving a TSS on the first set. In some of these examples, the SS block may further include a PSS and an SSS, and receiving the TSS, PSS, SSS, and PBCH may include interleaved TSS and PBCH and frequency division multiplexing. receiving the PSS and SSS obtained.

[0146] In some examples, the PBCH may be received based at least in part on the SS block index, and the UE wireless communication manager 915 may decode the PBCH based at least in part on the SS block index.

[0147] FIG. 10 shows a block diagram 1000 of a wireless device 1005 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Wireless device 1005 may be an example of aspects of wireless device 805 or UE described with reference to FIG. Wireless device 1005 may include receiver 1010 , UE wireless communication manager 1015 , and transmitter 1020 . Wireless device 1005 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0148] Receiver 1010 may receive packets, user data, or control information associated with various information channels (eg, information such as control channels, data channels, and information related to, for example, timing synchronization. Information may be Receiver 1010 may be an example of aspects of transceiver 1830 described with reference to Figure 18. Receiver 1010 may transmit a single antenna or set of antennas. available.

[0149] Transmitter 1020 may transmit signals generated by other components of the device. In some examples, transmitter 1020 may be collocated with receiver 910 in a transceiver module. For example, transmitter 1020 may be an example of an aspect of transceiver 1835 described with reference to FIG. Transmitter 1020 may utilize a single antenna or a set of antennas.

[0150] UE wireless communication manager 1015 may be an example of aspects of the UE wireless communication manager described with reference to FIG. UE wireless communication manager 1015 comprises BCH TTI reception manager 1025, optional SS block reception manager 1030, synchronization manager 1035, TSS demodulator 1040, optional beam identifier 1045, and optional PBCH demodulator 1050. can contain. Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0151] BCH TTI reception manager 1025 or SS block reception manager 1030 receives SS blocks including TSS, PSS, and SSS, eg, as described with reference to FIGS. can be used for A TSS may be based at least in part on an SS block index associated with the SS block. In some examples, the TSS is at least partially associated with the SS block index because the SS block index is encoded in the waveform signature of the TSS or because the SS block index is included in at least one modulation symbol in the TSS. can be based. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, the SSS may be based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI.

[0152] The synchronization manager 1035, for example, as described with reference to FIGS. can be used for

[0153] The TSS demodulator 1040 may be used to demodulate the TSS based at least in part on the SSS, as described herein, eg, with reference to FIGS. . For example, SSS may be transmitted as DMRS for TSS. A TSS demodulator 1040 determines a signal-to-noise ratio (SNR) and/or a signal-to-noise-plus-interference ratio (SINR) of an SSS transmitted over a wireless channel and uses the determined SNR and/or SINR. can demodulate the TSS. In another example, TSS demodulator 1040 uses the SSS to generate a channel estimate (eg, an estimate of the phase shift induced to the SSS by transmission over the wireless channel) and converts the channel estimate to can be used to demodulate the TSS.

[0154] A beam identifier 1045, for example, as described with reference to FIGS. can be used for

[0155] The PBCH demodulator 1050 demodulates the PBCH based at least in part on the SSS when the SS block includes the PBCH, as described herein, eg, with reference to FIGS. can be used to demodulate the

[0156] When an SS block includes a PBCH, in some examples the BCH TTI reception manager 1025 or the SS block reception manager 1030 may be used to receive the PBCH based at least in part on the SS block index; UE wireless communication manager 1015 may decode the PBCH based at least in part on the SS block index.

[0157] FIG. 11 illustrates a block diagram 1100 of a wireless device 1105 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Wireless device 1105 may be an example of aspects of wireless device 805 or UE described with reference to FIG. Wireless device 1105 may include receiver 1110 , UE wireless communication manager 1115 , and transmitter 1120 . Wireless device 1105 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0158] The receiver 1110 may receive packets, user data, or control information associated with various information channels (eg, information such as control channels, data channels, and information related to, for example, timing synchronization. Receiver 1110 may be an example of aspects of transceiver 1830 described with reference to Figure 18. Receiver 1110 may transmit a single antenna or set of antennas. available.

[0159] Transmitter 1120 may transmit signals generated by other components of the device. In some examples, transmitter 1120 may be collocated with receiver 1110 in a transceiver module. For example, transmitter 1120 may be an example of an aspect of transceiver 1835 described with reference to FIG. Transmitter 1120 may utilize a single antenna or a set of antennas.

[0160] UE wireless communication manager 1115 may be an example of aspects of the UE wireless communication manager described with reference to FIG. UE wireless communication manager 1115 may include SS block reception manager 1125 , TSS payload decoder 1130 and synchronization manager 1135 . Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0161] The SS block reception manager 1125 may be used to receive SS blocks containing TSSs, eg, as described with reference to Figures 2-7. A TSS may include at least one modulation symbol. In some examples, at least one modulation symbol may include a QPSK symbol or a BPSK symbol. In some examples, the SS block may also include PSS, SSS, and/or PBCH. In some examples, the SSS may be based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI.

[0162] The TSS payload decoder 1130 may be used to decode the SS block indices encoded in at least one modulation symbol, eg, as described with reference to FIGS. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, the SS block index may be encoded in at least one modulation symbol using a polar code, or Reed-Muller code, or Golay code, or TBCC. The TSS payload decoder 1130 also configures the beam sweep configuration used to receive a plurality of SS blocks, including the above SS blocks, within a BCH TTI, eg, as described with reference to FIGS. It can be used to decode at least one parameter from at least one modulation symbol. In some examples, at least one parameter of the beam sweep configuration may include the number of beams in the SS blockburst set, or the periodicity of the SS blockburst set, or a combination thereof.

[0163] The synchronization manager 1135 is used to identify the timing of SS blocks within a BCH TTI based at least in part on the SS block index, eg, as described with reference to FIGS. obtain.

[0164] FIG. 12 shows a block diagram 1200 of a wireless device 1205 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Wireless device 1205 may be an example of aspects of wireless device 805 or UE described with reference to FIG. Wireless device 1205 may include receiver 1210 , UE wireless communication manager 1215 , and transmitter 1220 . Wireless device 1205 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0165] Receiver 1210 may receive packets, user data, or control information associated with various information channels (eg, information such as control channels, data channels, and information related to, for example, timing synchronization. Information may be Receiver 1210 may be an example of aspects of transceiver 1830 described with reference to Figure 18. Receiver 1210 may transmit a single antenna or set of antennas. available.

[0166] Transmitter 1220 may transmit signals generated by other components of the device. In some examples, transmitter 1220 may be collocated with receiver 1210 in a transceiver module. For example, transmitter 1220 may be an example of an aspect of transceiver 1835 described with reference to FIG. Transmitter 1220 may utilize a single antenna or a set of antennas.

[0167] UE wireless communication manager 1215 may be an example of aspects of the UE wireless communication manager described with reference to FIG. UE wireless communication manager 1215 may include BCH TTI reception manager 1225 , optional SS block reception manager 1230 , demodulator 1235 and synchronization manager 1240 . Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0168] BCH TTI reception manager 1225 or SS block reception manager 1230 is used to receive SS blocks including TSS and PBCH, eg, as described with reference to FIGS. obtain. A TSS may be based at least in part on an SS block index associated with the SS block. In some examples, the TSS is at least partially associated with the SS block index because the SS block index is encoded in the waveform signature of the TSS or because the SS block index is included in at least one modulation symbol in the TSS. can be based. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, an SS block may further include a PSS and an SSS. In some examples, the SSS may be based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI.

[0169] Demodulator 1235 is for demodulating TSS and PBCH based at least in part on the same DMRS, as described herein, eg, with reference to FIGS. can be used. In some examples, the DMRS may be the SSS included in the SS block.

[0170] Synchronization manager 1240, for example, as described with reference to FIGS. can be used for

[0171] FIG. 13 shows a block diagram 1300 of an apparatus 1305 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Apparatus 1305 may be an example of aspects of one or more of the base stations described with reference to FIGS. Apparatus 1305 may include receiver 1310 , base station wireless communication manager 1315 , and transmitter 1320 . Device 1305 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0172] Receiver 1310 may receive data or control signals or information (ie, transmissions), some or all of which may be associated with various information channels (eg, data channels, control channels, etc.). Received signals or information, or measurements performed thereon, may be passed to other components of device 1305 . Receiver 1310 may include one or more antennas.

[0173] Transmitter 1320 may transmit data or control signals or information (i.e., transmissions) generated by other components of device 1305, some or all of which may be in various information channels (e.g., data channel, control channel, etc.). In some examples, transmitter 1320 may be collocated with receiver 1310 at a transceiver. For example, transmitter 1320 and receiver 1310 may be an example of aspects of transceiver 1950 described with reference to FIG. Transmitter 1320 may include one or more antennas that may be separate from (or shared with) the one or more antennas used by receiver 1310 .

[0174] At least some of the base station wireless communication manager 1315 and/or its various subcomponents may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented in software executed by a processor, the functionality of at least some of the base station wireless communication manager 1315 and/or its various subcomponents may be implemented using a general purpose processor, DSP, ASIC, FPGA or other programmable It may be implemented by logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0175] Base station wireless communication manager 1315 and/or at least some of its various subcomponents are distributed such that portions of the functionality are implemented in different physical locations by one or more physical devices. can be physically located at various locations, including being In some examples, at least some of the base station wireless communication manager 1315 and/or its various subcomponents may be separate and discrete components according to various aspects of the present disclosure. In other examples, the base station wireless communication manager 1315 and/or at least some of its various subcomponents include, but are not limited to, I/O components, transceivers, It may be combined with one or more other hardware components, including another computing device, one or more other components described in this disclosure, or combinations thereof. Base station wireless communication manager 1315 may be used to transmit one or more of the SS blocks described with reference to FIGS. 2 and 4-7. An SS block may include a TSS based at least in part on an SS block index associated with the SS block. In some examples, the base station wireless communication manager 1315 may be used to transmit a TSS that is outside the SS block and based at least in part on the timing of the TSS within the BCH TTI.

[0176] FIG. 14 illustrates a block diagram 1400 of an apparatus 1405 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Apparatus 1305 may be an example of aspects of one or more of the base stations described with reference to FIGS. Apparatus 1405 may include receiver 1410 , base station wireless communication manager 1415 , and transmitter 1420 . Device 1405 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0177] Receiver 1410 may receive data or control signals or information (ie, transmissions), some or all of which may be associated with various information channels (eg, data channels, control channels, etc.). Received signals or information, or measurements performed thereon, may be passed to other components of device 1405 . Receiver 1410 may include one or more antennas.

[0178] Transmitter 1420 may transmit data or control signals or information (i.e., transmissions) generated by other components of apparatus 1405, some or all of which may be in various information channels (e.g., data channel, control channel, etc.). In some examples, transmitter 1420 may be co-located with receiver 1410 at a transceiver. For example, transmitter 1420 and receiver 1410 may be an example of aspects of transceiver 1950 described with reference to FIG. Transmitter 1420 may include one or more antennas that may be separate from (or shared with) the one or more antennas used by receiver 1410 .

[0179] Base station wireless communication manager 1415 may be an example of aspects of the base station wireless communication manager described with reference to FIG. Base station wireless communication manager 1415 may include BCH TTI resource allocator 1425 , TSS determiner 1430 , BCH TTI transmission manager 1435 and optional SS block transmission manager 1440 . Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0180] In a first example of the base station wireless communication manager 1415, the BCH TTI resource allocator 1425 is configured for TSS and PBCH within a BCH TTI, eg, as described with reference to Figures 2-7. Can be used to allocate resources. TSS determiner 1430 may be used to determine the TSS based at least in part on the timing of the TSS within the BCH TTI, eg, as described with reference to FIGS. 2-7. BCH TTI transmission manager 1435 may be used to transmit TSS and PBCH on resources allocated for TSS and PBCH, eg, as described with reference to FIGS. 2-7. TSS may be transmitted as DMRS for PBCH on at least one port used to transmit TSS and PBCH.

[0181] In a second example of the base station wireless communication manager 1415, the BCH TTI resource allocator 1425 allocates resources for SS blocks within the BCH TTI, eg, as described with reference to FIGS. can be used for allocation. An SS block may include a TSS and a PBCH, and thus resources may be allocated for the TSS and PBCH in the SS block. In some examples, an SS block may also include a PSS and an SSS, and resources may be allocated for the PSS and SSS in the SS block. The SSS may be determined based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks transmitted (eg, by the base station) within the BCH TTI.

[0182] Also in a second example of the base station wireless communication manager 1415, the TSS determiner 1430 determines, at least in part, the timing of the TSS within the BCH TTI, eg, as described with reference to FIGS. can be used to determine the TSS based on The TSS timing may be based at least in part on the SS block index associated with the SS block. The SS block index may indicate the timing of the TSS within the BCH TTI, and thus the TSS may be determined based at least in part on the SS block index. In some examples, the TSS is at least partially embedded in the SS block index by encoding the SS block index in the waveform signature of the TSS or by including the SS block index in at least one modulation symbol in the TSS. can be determined based on In some examples, the SS block index may further identify the beam on which the SS block is transmitted.

[0183] In some examples, the TSS payload encoder 1445 may be used to encode the SS block index in at least one modulation symbol, eg, as described with reference to FIGS. In some examples, at least one modulation symbol may include a QPSK symbol or a BPSK symbol.

[0184] Also in a second example of the base station wireless communication manager 1415, the BCH TTI transmission manager 1435 or the SS block transmission manager 1440 may be for the SS block, eg, as described with reference to FIGS. may be used to transmit the TSS and PBCH on resources allocated to . TSS may be transmitted as DMRS for PBCH on at least one port used to transmit TSS and PBCH. In some examples, SSS may be transmitted as an additional DMRS for PBCH on at least one port used to transmit SSS and PBCH. In some examples, the PBCH may be sent based at least in part on the SS block index of the SS block.

[0185] In some examples, transmitting the TSS and the PBCH may include transmitting the TSS time division multiplexed with the PBCH on the same set of one or more frequency subcarriers. In some of these examples, the SS block may further include PSS and SSS, and transmitting TSS, SSS, and PBCH may include transmitting PBCH and TSS after SSS. .

[0186] In some examples, transmitting the TSS and the PBCH comprises a first set of one or more frequency subcarriers that overlap with a second set of one or more frequency subcarriers on which the PBCH is transmitted. transmitting the TSS on the set of 1. The first set of one or more frequency subcarriers may be different than the second set of one or more frequency subcarriers. In some examples, transmitting the TSS and the PBCH may further include transmitting the TSS frequency division multiplexed with at least a portion of the PBCH. In some examples, the SS block may further include PSS and SSS, and transmitting SSS and PBCH may include transmitting a second portion of PBCH after SSS.

[0187] In some examples, transmitting the TSS and the PBCH comprises one or more frequency subcarriers interleaved with a second set of one or more frequency subcarriers on which the PBCH is transmitted. It may include transmitting a TSS on the first set. In some of these examples, the SS block may further include a PSS and an SSS, and transmitting the TSS, PSS, SSS, and PBCH may involve interleaved TSS and PBCH and frequency division multiplexing. transmitting the PSS and SSS obtained.

[0188] FIG. 15 shows a block diagram 1500 of an apparatus 1505 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Apparatus 1505 may be an example of aspects of one or more of the base stations described with reference to FIGS. Apparatus 1505 may include a receiver 1510 , a base station wireless communication manager 1515 and a transmitter 1520 . Device 1505 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0189] Receiver 1510 may receive data or control signals or information (ie, transmissions), some or all of which may be associated with various information channels (eg, data channels, control channels, etc.). Received signals or information, or measurements performed thereon, may be passed to other components of device 1505 . Receiver 1510 may include one or more antennas.

[0190] Transmitter 1520 may transmit data or control signals or information (i.e., transmissions) generated by other components of device 1505, some or all of which may be in various information channels (e.g., data channel, control channel, etc.). In some examples, transmitter 1520 may be collocated with receiver 1510 at a transceiver. For example, transmitter 1520 and receiver 1510 may be an example of aspects of transceiver 1950 described with reference to FIG. Transmitter 1520 may include one or more antennas that may be separate from (or shared with) the one or more antennas used by receiver 1510 .

[0191] Base station wireless communication manager 1515 may be an example of aspects of the base station wireless communication manager described with reference to FIG. Base station wireless communication manager 1515 may include SS block resource allocator 1525 , TSS determiner 1530 , BCH TTI transmission manager 1535 and optional SS block transmission manager 1540 . Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0192] SS block resource allocator 1525 may be used to allocate resources for SS blocks, eg, as described with reference to FIGS. An SS block may include a TSS, a PSS, and an SSS, and thus resources may be allocated for the TSS, PSS, and SSS in the SS block. The SSS may be determined based at least in part on the PCI of the base station. In some examples, an SS block may also include a PBCH, and resources may be allocated for the PBCH in the SS block. In some examples, the SS block may be one SS block among multiple SS blocks transmitted (eg, by the base station) within the BCH TTI.

[0193] The TSS determiner 1530 is used to determine the TSS based at least in part on the timing of the TSS within the BCH TTI, eg, as described with reference to FIGS. obtain. The TSS timing may be based at least in part on the SS block index associated with the SS block. The SS block index may indicate the timing of the TSS within the BCH TTI, and thus the TSS may be determined based at least in part on the SS block index. In some examples, the TSS is at least partially embedded in the SS block index by encoding the SS block index in the waveform signature of the TSS or by including the SS block index in at least one modulation symbol in the TSS. can be determined based on In some examples, the SS block index may further identify the beam on which the SS block is transmitted.

[0194] BCH TTI transmission manager 1535 or SS block transmission manager 1540, for example, as described with reference to FIGS. and SSS. The SSS may be sent as a DMRS for the TSS and on at least one port used to send the SSS. When the SS block includes PBCH, SSS may also be transmitted as DMRS for PBCH on at least one port used to transmit SSS and PBCH. In some examples, the PBCH may be sent based at least in part on the SS block index of the SS block.

[0195] When an SS block includes PBCH, in some examples, BCH TTI transmission manager 1535 or SS block transmission manager 1540 is time division multiplexed with PBCH on the same set of one or more frequency subcarriers. can be used to transmit the TSS. In some of these examples, transmitting TSS, SSS, and PBCH may include transmitting PBCH and TSS after SSS.

[0196] FIG. 16 shows a block diagram 1600 of an apparatus 1605 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Apparatus 1605 may be an example of aspects of one or more of the base stations described with reference to FIGS. Apparatus 1605 may include receiver 1610 , base station wireless communication manager 1615 and transmitter 1620 . Device 1605 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0197] Receiver 1610 may receive data or control signals or information (ie, transmissions), some or all of which may be associated with various information channels (eg, data channels, control channels, etc.). Received signals or information, or measurements performed thereon, may be passed to other components of device 1605 . Receiver 1610 may include one or more antennas.

[0198] Transmitter 1620 may transmit data or control signals or information (i.e., transmissions) generated by other components of device 1605, some or all of which may be in various information channels (e.g., data channel, control channel, etc.). In some examples, transmitter 1620 may be co-located with receiver 1610 at a transceiver. For example, transmitter 1620 and receiver 1610 may be an example of aspects of transceiver 1950 described with reference to FIG. Transmitter 1620 may include one or more antennas that may be separate from (or shared with) the one or more antennas used by receiver 1610 .

[0199] Base station wireless communication manager 1615 may be an example of aspects of the base station wireless communication manager described with reference to FIG. Base station wireless communication manager 1615 may include SS block resource allocator 1625 , TSS payload encoder 1630 , SS block transmission manager 1635 , or optional TSS transmission manager 1640 . Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0200] SS block resource allocator 1625 may be used to allocate resources for SS blocks, eg, as described with reference to FIGS. An SS block may include a TSS, PSS, SSS, and/or PBCH, and thus resources may be allocated for the TSS, PSS, SSS, and/or PBCH in the SS block. The SSS may be determined based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks transmitted (eg, by the base station) within the BCH TTI.

[0201] TSS payload encoder 1630 may be used to encode the SS block index in at least one modulation symbol, eg, as described with reference to FIGS. In some examples, at least one modulation symbol may include a QPSK symbol or a BPSK symbol. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, the SS block index may be encoded in at least one modulation symbol using a polar code, or Reed-Muller code, or Golay code, or TBCC. The TSS payload encoder 1630 is also a beam sweeping configuration used to transmit multiple SS blocks, including the SS block above, within a BCH TTI, eg, as described with reference to FIGS. It may be used to encode at least one parameter in at least one modulation symbol. In some examples, at least one parameter of the beam sweep configuration may include the number of beams in the SS blockburst set, or the periodicity of the SS blockburst set, or a combination thereof.

[0202] SS block transmission manager 1635 or TSS transmission manager 1640 includes at least one modulation symbol on resources allocated for an SS block, eg, as described with reference to FIGS. It can be used to transmit TSS.

[0203] In some examples, the base station wireless communication manager 1615 may be used to generate a CRC for the SS block index and encode the CRC in at least one modulation symbol along with the SS block index.

[0204] FIG. 17 shows a block diagram 1700 of an apparatus 1705 that supports communication of SS block indices in timing synchronization signals, according to aspects of this disclosure. Apparatus 1705 may be an example of aspects of one or more of the base stations described with reference to FIGS. Apparatus 1705 may include a receiver 1710 , a base station wireless communication manager 1715 and a transmitter 1720 . Device 1705 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0205] Receiver 1710 may receive data or control signals or information (ie, transmissions), some or all of which may be associated with various information channels (eg, data channels, control channels, etc.). Received signals or information, or measurements performed thereon, may be passed to other components of device 1705 . Receiver 1710 may include one or more antennas.

[0206] Transmitter 1720 may transmit data or control signals or information (i.e., transmissions) generated by other components of apparatus 1705, some or all of which may be in various information channels (e.g., data channel, control channel, etc.). In some examples, transmitter 1720 may be collocated with receiver 1710 at a transceiver. For example, transmitter 1720 and receiver 1710 may be an example of aspects of transceiver 1950 described with reference to FIG. Transmitter 1720 may include one or more antennas that may be separate from (or shared with) the one or more antennas used by receiver 1710 .

[0207] Base station wireless communication manager 1715 may be an example of aspects of the base station wireless communication manager described with reference to FIG. Base station wireless communication manager 1715 may include SS block resource allocator 1725 , TSS determiner 1730 and BCH TTI transmission manager 1735 . Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0208] SS block resource allocator 1725 may be used to allocate resources for SS blocks, eg, as described with reference to FIGS. An SS block may include a TSS and a PBCH, and thus resources may be allocated for the TSS and PBCH in the SS block. An SS block may also include a PSS and an SSS, and resources in the SS block may be allocated for the PSS and SSS. The SSS may be determined based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks transmitted (eg, by the base station) within the BCH TTI.

[0209] The TSS determiner 1730 is used to determine the TSS based at least in part on the SS block index associated with the SS block, eg, as described with reference to FIGS. can be The SS block index may indicate the timing of the SS block within the BCH TTI.

[0210] BCH TTI transmission manager 1735 is for transmitting TSS and PBCH on resources allocated for SS blocks, eg, as described with reference to FIGS. can be used. A transmitted SS block may include the same DMRS for TSS and PBCH on at least one port used to transmit DMRS, TSS, and PBCH. In some examples, DMRS may include SSS in SS blocks.

[0211] FIG. 18 illustrates a block diagram 1800 of a UE 1815 for use in wireless communications, according to various aspects of the present disclosure. The UE1815 can be used in personal computers (e.g., laptop computers, netbook computers, tablet computers, etc.), cellular phones, PDAs, digital video recorders (DVRs), internet appliances, gaming consoles, e-readers, vehicles, home appliances, lighting or It may be included in or be part of an alarm control system or the like. UE 1815 may have an internal power source (not shown), such as a small battery, in some examples to facilitate mobile operation. In some examples, UE 1815 may be an example of aspects of one or more of the UEs described with reference to FIGS. 1 and 3, or aspects of the apparatus described with reference to FIG. . UE 1815 may be configured to implement at least some of the UE or device techniques or functions described with reference to FIGS. 1-12.

[0212] UE 1815 may include a processor 1810, a memory 1820, at least one transceiver (represented by transceiver 1830), an antenna 1840 (eg, an antenna array), or a UE wireless communication manager 1850. Each of these components may be in communication with each other, directly or indirectly, via one or more buses 1835 .

[0213] The memory 1820 may include random access memory (RAM) or read only memory (ROM). Memory 1820, when executed, is configured to cause processor 1810 to perform various functions described herein relating to wireless communication, including, for example, receiving TSS and/or SS blocks. It may store computer readable, computer executable code 1825 including instructions. Alternatively, the computer-executable code 1825 is not directly executable by the processor 1810, but (eg, when compiled and executed) causes the UE 1815 to perform various functions described herein. can be configured to

[0214] Processor 1810 may include an intelligent hardware device, such as a central processing unit (CPU), a microcontroller, an ASIC, or the like. Processor 1810 may process information received through transceiver 1830 or information to be sent to transceiver 1830 for transmission through antenna 1840 . Processor 1810, alone or in conjunction with UE wireless communication manager 1850, may handle one or more aspects of communicating over (or managing communications across) one or more radio frequency spectrum bands.

[0215] Transceiver 1830 may include a modem configured to modulate packets, provide modulated packets to antenna 1840 for transmission, and demodulate packets received from antenna 1840. Transceiver 1830 may be implemented as one or more transmitters and one or more separate receivers in some examples. Transceiver 1830 may support communication in one or more radio frequency spectrum bands. Transceiver 1830 communicates bidirectionally via antenna 1840 with one or more base stations or devices, such as one or more of the base stations described with reference to FIGS. can be configured to

[0216] UE wireless communication manager 1850 may be configured to implement or control some or all of the UE or device techniques or functions described with reference to FIGS. UE wireless communication manager 1850 , or portions thereof, may include a processor, or some or all of the functionality of UE wireless communication manager 1850 may be performed by or in conjunction with processor 1810 . In some examples, UE wireless communication manager 1850 may be an example of aspects of one or more of the UE wireless communication managers described with reference to FIGS. 8-12.

[0217] FIG. 19 illustrates a block diagram 1900 of a base station 1905 for use in wireless communications, in accordance with various aspects of the present disclosure. In some examples, base station 1905 may be one or more aspects of the base stations described with reference to FIGS. 1 and 3, or an example aspect of the apparatus described with reference to FIG. can be Base station 1905 may be configured to implement or facilitate at least some of the base station or device techniques or functions described with reference to FIGS. 1-7 and 13-17.

Base station 1905 may include processor 1910 , memory 1920 , at least one transceiver (represented by transceiver 1950 ), at least one antenna 1955 (eg, antenna array), or base station wireless communication manager 1960 . Base station 1905 may also include one or more of base station communicator 1930 or network communicator 1940 . Each of these components may be in communication with each other directly or indirectly via one or more buses 1935 .

[0219] Memory 1920 may include RAM or ROM. Memory 1920, when executed, performs various functions described herein relating to wireless communication, including, for example, allocating resources for SS blocks and transmitting TSSs in SS blocks. Computer readable, computer executable code 1925 containing instructions configured to cause 1910 to be stored may be stored. Alternatively, computer-executable code 1925 is not directly executable by processor 1910, but (eg, when compiled and executed) performs various functions described herein in base station 1905. can be configured to allow

[0220] The processor 1910 may include intelligent hardware devices such as CPUs, microcontrollers, ASICs, and the like. Processor 1910 may process information received via transceiver 1950 , base station communicator 1930 , or network communicator 1940 . Processor 1910 also provides information to be sent to transceiver 1950 for transmission over antenna 1955 or transmission to one or more other base stations (eg, base station 1905-a and base station 1905-b). network for transmission to core network 1945, which may be an example of one or more aspects of core network 130 described with reference to FIG. It may process information to be sent to communicator 1940 . Processor 1910, alone or in conjunction with base station wireless communication manager 1960, may handle one or more aspects of communicating over (or managing communications across) one or more radio frequency spectrum bands.

[0221] Transceiver 1950 may include a modem configured to modulate packets, provide modulated packets to antenna 1955 for transmission, and demodulate packets received from antenna 1955. Transceiver 1950 may be implemented as one or more transmitters and one or more separate receivers in some examples. Transceiver 1950 may support communication in one or more radio frequency spectrum bands. Transceiver 1950 bi-directionally communicates antenna 1955 with one or more UEs or devices, such as one or more of the UEs or devices described with reference to FIGS. may be configured to communicate via Base station 1905 may communicate with core network 1945 through network communicator 1940 . Base station 1905 can also use base station communicator 1930 to communicate with other base stations, such as base station 1905-a and base station 1905-b.

[0222] Base station wireless communication manager 1960 is configured to implement or control some or all of the base station or device techniques or functions described with reference to FIGS. obtain. Base station wireless communication manager 1960 , or portions thereof, may include a processor, or some or all of the functionality of base station wireless communication manager 1960 may be performed by or in conjunction with processor 1910 . In some examples, base station wireless communication manager 1960 may be an example of aspects of one or more of the base station wireless communication managers described with reference to FIGS. 13-17.

[0223] FIG. 20 is a flowchart illustrating an example method 2000 for wireless communication at a UE, in accordance with various aspects of the present disclosure. For clarity, for method 2000, one or more aspects of the UE described with reference to FIGS. 1, 3, and 18, aspects of the apparatus described with reference to FIG. 8, or Described below are aspects of one or more of the UE wireless communication managers described with reference to FIGS. 8-12 and 18. FIG. In some examples, a UE may execute one or more sets of code to control functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to implement one or more of the functions described below.

[0224] At block 2005, method 2000 may include receiving a TSS and a PBCH, eg, as described with reference to FIGS. The TSS may be based at least in part on the timing of the TSS within the BCH TTI. In some examples, the operations at block 2005 may be implemented using the BCH TTI reception manager 925 described with reference to FIG.

[0225] At block 2010, the method 2200 may include determining the timing of the TSS within the BCH TTI, eg, as described with reference to Figures 2-7. In some examples, the operations at block 2010 may be implemented using sync manager 930 described with reference to FIG.

[0226] At block 2015, method 2000 may include demodulating the PBCH based at least in part on the TSS, eg, as described with reference to FIGS. In some examples, the operations at block 2015 may be implemented using PBCH demodulator 935 described with reference to FIG.

[0227] FIG. 21 is a flowchart illustrating an example method 2100 for wireless communication at a UE, in accordance with various aspects of the present disclosure. For clarity, for method 2100, one or more aspects of the UE described with reference to FIGS. 1, 3, and 18, aspects of the apparatus described with reference to FIG. 8, or Described below are aspects of one or more of the UE wireless communication managers described with reference to FIGS. 8-12 and 18. FIG. In some examples, a UE may execute one or more sets of code to control functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to implement one or more of the functions described below.

[0228] At block 2105, method 2100 may include receiving an SS block including a TSS and a PBCH, eg, as described with reference to FIGS. 2-7. A TSS may be based at least in part on an SS block index associated with the SS block. In some examples, the TSS is at least partially associated with the SS block index because the SS block index is encoded in the waveform signature of the TSS or because the SS block index is included in at least one modulation symbol in the TSS. can be based. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, an SS block may further include a PSS and an SSS. The SSS may be based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI. In some examples, the operations in block 2105 may be implemented using the BCH TTI reception manager 925 or SS block reception manager 940 described with reference to FIG.

[0229] At block 2110, the method 2100 calculates the timing of the SS block, and thus the TSS, within the BCH TTI based at least in part on the SS block index, eg, as described with reference to FIGS. determining the timing of the In some examples, the operations at block 2110 may be implemented using sync manager 930 described with reference to FIG.

[0230] At block 2115, method 2100 may include demodulating the PBCH based at least in part on the TSS, eg, as described with reference to FIGS. When the SS block includes a PSS and an SSS, the PBCH may also be demodulated based at least in part on the SSS. In some examples, the operations at block 2115 may be implemented using PBCH demodulator 935 described with reference to FIG.

[0231] At block 2120, the method 2100 includes identifying a beam on which the SS block is transmitted based at least in part on the SS block index, eg, as described with reference to FIGS. may be included in some cases. In some examples, the operations at block 2120 may be performed using beam identifier 945 described with reference to FIG.

[0232] In some examples of the method 2100, receiving the TSS and the PBCH includes receiving the TSS time division multiplexed with the PBCH on the same set of one or more frequency subcarriers. obtain. In some of these examples, an SS block may further include a PSS and an SSS, and receiving TSS, SSS, and PBCH may include receiving SSS followed by PBCH and TSS. .

[0233] In some examples of the method 2100, receiving the TSS and the PBCH includes one or more frequency subcarriers overlapping the second set of one or more frequency subcarriers on which the PBCH is received. It may include receiving a TSS on a first set of carriers. The first set of one or more frequency subcarriers may be different from the second set of one or more frequency subcarriers. In some examples, receiving the TSS and the PBCH may further include receiving the TSS frequency division multiplexed with at least a portion of the PBCH. In some examples, the SS block may further include a PSS and an SSS, and receiving the SSS and the PBCH may include receiving a second portion of the PBCH after the SSS.

[0234] In some examples of the method 2100, receiving the TSS and the PBCH comprises one or more frequencies interleaved with a second set of one or more frequency subcarriers over which the PBCH is received. It may include receiving a TSS on the first set of subcarriers. In some of these examples, the SS block may further include a PSS and an SSS, and receiving the TSS, PSS, SSS, and PBCH may include interleaved TSS and PBCH and frequency division multiplexing. receiving the PSS and SSS obtained.

[0235] In some examples of the method 2100, the PBCH may be received based at least in part on the SS block index, the method 2100 including decoding the PBCH based at least in part on the SS block index. obtain.

[0236] FIG. 22 is a flowchart illustrating an example method 2200 for wireless communication at a base station, in accordance with various aspects of the present disclosure. For clarity, method 2200 includes aspects of one or more of the base stations described with reference to FIGS. 1, 3, and 19, aspects of the apparatus described with reference to FIG. Alternatively, described below with respect to aspects of one or more of the base station wireless communication managers described with reference to FIGS. 13-17 and 19. FIG. In some examples, a base station may execute one or more sets of code to control functional elements of the base station to perform the functions described below. Additionally or alternatively, a base station may use dedicated hardware to implement one or more of the functions described below.

[0237] At block 2205, method 2200 may include allocating resources for the TSS and PBCH within the BCH TTI, eg, as described with reference to FIGS. In some examples, the operations at block 2205 may be implemented using the BCH TTI resource allocator 1425 described with reference to FIG.

[0238] At block 2210, method 2200 may include determining the TSS based at least in part on the timing of the TSS within the BCH TTI, eg, as described with reference to FIGS. In some examples, the operations at block 2205 may be implemented using TSS determiner 1430 described with reference to FIG.

[0239] At block 2215, the method 2200 configures transmitting the TSS and PBCH on the resources allocated for the TSS and PBCH, eg, as described with reference to FIGS. can contain. TSS may be transmitted as DMRS for PBCH on at least one port used to transmit TSS and PBCH. In some examples, the operations at block 2215 may be implemented using the BCH TTI transmission manager 1435 described with reference to FIG.

[0240] FIG. 23 is a flowchart illustrating an example method 2300 for wireless communication at a base station, in accordance with various aspects of the present disclosure. For clarity, method 2300 includes aspects of one or more of the base stations described with reference to FIGS. 1, 3, and 19, aspects of the apparatus described with reference to FIG. Alternatively, described below with respect to aspects of one or more of the base station wireless communication managers described with reference to FIGS. 13-17 and 19. FIG. In some examples, a base station may execute one or more sets of code to control functional elements of the base station to perform the functions described below. Additionally or alternatively, a base station may use dedicated hardware to implement one or more of the functions described below.

[0241] At block 2305, method 2300 may include allocating resources for the SS block within the BCH TTI, eg, as described with reference to FIGS. An SS block may include a TSS and a PBCH, and thus resources may be allocated for the TSS and PBCH in the SS block. In some examples, an SS block may also include a PSS and an SSS, and resources may be allocated for the PSS and SSS in the SS block. The SSS may be determined based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks transmitted (eg, by the base station) within the BCH TTI. In some examples, the operations at block 2305 may be implemented using the BCH TTI resource allocator 1425 described with reference to FIG.

[0242] At block 2310, the method 2300 may include determining the TSS based at least in part on the timing of the TSS within the BCH TTI, eg, as described with reference to FIGS. The TSS timing may be based at least in part on the SS block index associated with the SS block. The SS block index may indicate the timing of the TSS within the BCH TTI, and thus the TSS may be determined based at least in part on the SS block index. In some examples, the TSS is at least partially embedded in the SS block index by encoding the SS block index in the waveform signature of the TSS or by including the SS block index in at least one modulation symbol in the TSS. can be determined based on In some examples, the SS block index may further identify the beam on which the SS block is transmitted. In some examples, the operations at block 2305 may be implemented using TSS determiner 1430 described with reference to FIG.

[0243] At block 2315, the method 2300 may include transmitting the TSS and the PBCH on the resources allocated for the SS blocks, eg, as described with reference to FIGS. . TSS may be transmitted as DMRS for PBCH on at least one port used to transmit TSS and PBCH. In some examples, SSS may be transmitted as an additional DMRS for PBCH on at least one port used to transmit SSS and PBCH. In some examples, the PBCH may be sent based at least in part on the SS block index of the SS block. In some examples, the operations in block 2315 are implemented using the BCH TTI transmission manager 1435, or may be described with reference to FIG.

[0244] In some examples of the method 2300, transmitting the TSS and the PBCH includes transmitting the TSS time division multiplexed with the PBCH on the same set of one or more frequency subcarriers. obtain. In some of these examples, the SS block may further include PSS and SSS, and transmitting TSS, SSS, and PBCH may include transmitting PBCH and TSS after SSS. .

[0245] In some examples of the method 2300, transmitting the TSS and the PBCH includes one or more frequency subcarriers that overlap with the second set of one or more frequency subcarriers on which the PBCH is transmitted. It may include transmitting the TSS on the first set of carriers. The first set of one or more frequency subcarriers may be different from the second set of one or more frequency subcarriers. In some examples, transmitting the TSS and the PBCH may further include transmitting the TSS frequency division multiplexed with at least a portion of the PBCH. In some examples, the SS block may further include PSS and SSS, and transmitting SSS and PBCH may include transmitting a second portion of PBCH after SSS.

[0246] In some examples of the method 2300, transmitting the TSS and the PBCH comprises one or more frequencies interleaved with a second set of one or more frequency subcarriers on which the PBCH is transmitted. It may include transmitting the TSS on the first set of subcarriers. In some of these examples, the SS block may further include a PSS and an SSS, and transmitting the TSS, PSS, SSS, and PBCH may involve interleaved TSS and PBCH and frequency division multiplexing. transmitting the PSS and SSS obtained.

[0247] FIG. 24 is a flowchart illustrating an example method 2400 for wireless communication at a UE, in accordance with various aspects of the present disclosure. For clarity, for method 2400, one or more aspects of the UE described with reference to FIGS. 1, 3, and 18, aspects of the apparatus described with reference to FIG. 8, or Described below are aspects of one or more of the UE wireless communication managers described with reference to FIGS. 8-12 and 18. FIG. In some examples, a UE may execute one or more sets of code to control functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to implement one or more of the functions described below.

[0248] At block 2405, method 2400 may include receiving an SS block including a TSS, a PSS, and an SSS, eg, as described with reference to FIGS. A TSS may be based at least in part on an SS block index associated with the SS block. In some examples, the TSS is at least partially associated with the SS block index because the SS block index is encoded in the waveform signature of the TSS or because the SS block index is included in at least one modulation symbol in the TSS. can be based. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, the SSS may be based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI. In some examples, the operations in block 2405 may be implemented using the BCH TTI reception manager 1025 or SS block reception manager 1030 described with reference to FIG.

[0249] At block 2410, the method 2400 time the SS blocks within the BCH TTI based at least in part on the SS block indices, eg, as described with reference to FIGS. determining. In some examples, the operations at block 2410 may be implemented using sync manager 1035 described with reference to FIG.

[0250] At block 2415, the method 2400 includes demodulating the TSS based at least in part on the SSS, as described herein, eg, with reference to FIGS. obtain. In some examples, the operations at block 2415 may be implemented using TSS demodulator 1040 described with reference to FIG.

[0251] At block 2420, the method 2400 identifies the beam on which the SS block is transmitted based at least in part on the SS block index, eg, as described with reference to FIGS. may optionally include doing In some examples, the operations at block 2420 may be performed using beam identifier 1045 described with reference to FIG.

[0252] At block 2425, when the SS block includes the PBCH, the method 2400 may be based at least in part on the SSS as described herein, eg, with reference to FIGS. may optionally include demodulating the PBCH using In some examples, the operations at block 2425 may be implemented using PBCH demodulator 1050 described with reference to FIG.

[0253] In some examples of the method 2400, the SS block may include the PBCH, and receiving the TSS and the PBCH are time division multiplexed with the PBCH on the same set of one or more frequency subcarriers. receiving the TSS. In some of these examples, receiving the TSS, SSS, and PBCH may include receiving the PBCH and TSS after the SSS.

[0254] When the SS block includes the PBCH, in some examples of method 2400, the PBCH may be received based at least in part on the SS block index, and method 2100 is based at least in part on the SS block index. , decoding the PBCH.

[0255] FIG. 25 is a flowchart illustrating an example method 2500 for wireless communication at a base station, in accordance with various aspects of the present disclosure. For clarity, method 2500 includes aspects of one or more of the base stations described with reference to FIGS. 1, 3, and 19, aspects of the apparatus described with reference to FIG. Alternatively, described below with respect to aspects of one or more of the base station wireless communication managers described with reference to FIGS. 13-17 and 19. FIG. In some examples, a base station may execute one or more sets of code to control functional elements of the base station to perform the functions described below. Additionally or alternatively, a base station may use dedicated hardware to implement one or more of the functions described below.

[0256] At block 2505, method 2500 may include allocating resources for the SS block, eg, as described with reference to FIGS. An SS block may include a TSS, a PSS, and an SSS, and thus resources may be allocated for the TSS, PSS, and SSS in the SS block. The SSS may be determined based at least in part on the PCI of the base station. In some examples, an SS block may also include a PBCH, and resources may be allocated for the PBCH in the SS block. In some examples, the SS block may be one SS block among multiple SS blocks transmitted (eg, by the base station) within the BCH TTI. In some examples, the operations at block 2505 may be implemented using the SS block resource allocator 1525 described with reference to FIG.

[0257] At block 2510, the method 2500 includes determining the TSS based at least in part on the timing of the TSS within the BCH TTI, eg, as described with reference to FIGS. can contain. The TSS timing may be based at least in part on the SS block index associated with the SS block. The SS block index may indicate the timing of the TSS within the BCH TTI, and thus the TSS may be determined based at least in part on the SS block index. In some examples, the TSS is at least partially embedded in the SS block index by encoding the SS block index in the waveform signature of the TSS or by including the SS block index in at least one modulation symbol in the TSS. can be determined based on In some examples, the SS block index may further identify the beam on which the SS block is transmitted. In some examples, the operations at block 2505 may be implemented using TSS determiner 1530 described with reference to FIG.

[0258] At block 2515, the method 2500 transmits the TSS PSS and SSS on the resources allocated for the SS block, eg, as described with reference to FIGS. can include The SSS may be sent as a DMRS for the TSS and on at least one port used to send the SSS. When the SS block includes PBCH, SSS may also be transmitted as DMRS for PBCH on at least one port used to transmit SSS and PBCH. In some examples, the PBCH may be sent based at least in part on the SS block index of the SS block. In some examples, the operations at block 2515 may be implemented using the BCH TTI transmission manager 1535 or SS block transmission manager 1540 described with reference to FIG.

[0259] When the SS block includes the PBCH, in some examples of method 2500, transmitting the TSS and PBCH are time division multiplexed with the PBCH on the same set of one or more frequency subcarriers. transmitting the TSS. In some of these examples, transmitting TSS, SSS, and PBCH may include transmitting PBCH and TSS after SSS.

[0260] FIG. 26 is a flowchart illustrating an example method 2600 for wireless communication at a UE, in accordance with various aspects of the present disclosure. For clarity, for method 2600, one or more aspects of the UE described with reference to FIGS. 1, 3, and 18, aspects of the apparatus described with reference to FIG. 8, or Described below are aspects of one or more of the UE wireless communication managers described with reference to FIGS. 8-12 and 18. FIG. In some examples, a UE may execute one or more sets of code to control functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to implement one or more of the functions described below.

[0261] At block 2605, method 2600 may include receiving an SS block that includes a TSS, eg, as described with reference to Figures 2-7. A TSS may include at least one modulation symbol. In some examples, at least one modulation symbol may include a QPSK symbol or a BPSK symbol. In some examples, the SS block may also include PSS, SSS, and/or PBCH. In some examples, the SSS may be based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI. In some examples, the operations at block 2605 may be implemented using the SS block receive manager 1125 described with reference to FIG.

[0262] At block 2610, method 2600 may include decoding the SS block indices encoded in at least one modulation symbol, eg, as described with reference to FIGS. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, the SS block index may be encoded in at least one modulation symbol using a polar code, or Reed-Muller code, or Golay code, or TBCC. In some examples, the operations at block 2610 may be implemented using TSS payload decoder 1130 described with reference to FIG.

[0263] At block 2615, the method 2600 is used to receive a plurality of SS blocks, including the above SS block, within the BCH TTI, eg, as described with reference to FIGS. It may optionally include decoding at least one parameter of the beam sweeping configuration from the at least one modulation symbol. In some examples, at least one parameter of the beam sweep configuration may include the number of beams in the SS blockburst set, or the periodicity of the SS blockburst set, or a combination thereof. In some examples, the operations at block 2615 may be implemented using TSS payload decoder 1130 described with reference to FIG.

[0264] At block 2620, the method 2600 identifies the timing of the SS block within the BCH TTI based at least in part on the SS block index, eg, as described with reference to FIGS. can include In some examples, the operations at block 2620 may be implemented using sync manager 1135 described with reference to FIG.

[0265] In some examples, the method 2600 includes decoding a CRC of an SS block index encoded in at least one modulation symbol and verifying the SS block index based at least in part on the CRC. and may optionally be included.

[0266] FIG. 27 is a flowchart illustrating an example methodology 2700 for wireless communication at a base station, in accordance with various aspects of the present disclosure. For clarity, method 2700 includes aspects of one or more of the base stations described with reference to FIGS. 1, 3, and 19, aspects of the apparatus described with reference to FIG. Alternatively, described below with respect to aspects of one or more of the base station wireless communication managers described with reference to FIGS. 13-17 and 19. FIG. In some examples, a base station may execute one or more sets of code to control functional elements of the base station to perform the functions described below. Additionally or alternatively, a base station may use dedicated hardware to implement one or more of the functions described below.

[0267] At block 2705, method 2700 may include allocating resources for the SS block, eg, as described with reference to FIGS. An SS block may include a TSS, PSS, SSS, and/or PBCH, and thus resources may be allocated for the TSS, PSS, SSS, and/or PBCH in the SS block. The SSS may be determined based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks transmitted (eg, by the base station) within the BCH TTI. In some examples, the operations at block 2705 may be implemented using the SS block resource allocator 1625 described with reference to FIG.

[0268] At block 2710, method 2700 may include encoding the SS block index in at least one modulation symbol, eg, as described with reference to FIGS. In some examples, at least one modulation symbol may include a QPSK symbol or a BPSK symbol. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, the SS block index may be encoded in at least one modulation symbol using a polar code, or Reed-Muller code, or Golay code, or TBCC. In some examples, the operations at block 2710 may be implemented using TSS payload encoder 1630 described with reference to FIG.

[0269] At block 2715, the method 2700 is used to transmit a plurality of SS blocks, including the above SS block, within the BCH TTI, eg, as described with reference to FIGS. It may optionally include encoding at least one parameter of the beam sweeping configuration in at least one modulation symbol. In some examples, at least one parameter of the beam sweep configuration may include the number of beams in the SS blockburst set, or the periodicity of the SS blockburst set, or a combination thereof. In some examples, the operations at block 2715 may be implemented using TSS payload encoder 1630 described with reference to FIG.

[0270] At block 2720, method 2700 transmits a TSS including at least one modulation symbol on resources allocated for an SS block, eg, as described with reference to FIGS. can include In some examples, the operations at block 2720 may be implemented using SS block transmission manager 1635 or TSS transmission manager 1640 described with reference to FIG.

[0271] In some examples, method 2700 may optionally include generating a CRC for the SS block index and encoding the CRC in at least one modulation symbol with the SS block index.

[0272] FIG. 28 is a flowchart illustrating an example method 2800 for wireless communication at a UE, in accordance with various aspects of the present disclosure. For clarity, for method 2800, one or more aspects of the UE described with reference to FIGS. 1, 3, and 18, aspects of the apparatus described with reference to FIG. 8, or Described below are aspects of one or more of the UE wireless communication managers described with reference to FIGS. 8-12 and 18. FIG. In some examples, a UE may execute one or more sets of code to control functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to implement one or more of the functions described below.

[0273] At block 2805, method 2800 may include receiving an SS block including a TSS and a PBCH, eg, as described with reference to FIGS. A TSS may be based at least in part on an SS block index associated with the SS block. In some examples, the TSS is at least partially associated with the SS block index because the SS block index is encoded in the waveform signature of the TSS or because the SS block index is included in at least one modulation symbol in the TSS. can be based. The SS block index may indicate the timing of the TSS within the BCH TTI and thus the timing of the SS block within the BCH TTI. In some examples, an SS block may further include a PSS and an SSS. In some examples, the SSS may be based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks within a BCH TTI. In some examples, the operations in block 2805 may be implemented using the BCH TTI reception manager 1225 or SS block reception manager 1230 described with reference to FIG.

[0274] At block 2810, the method 2800 demodulates the TSS and PBCH based at least in part on the same DMRS, as described herein, eg, with reference to FIGS. can include doing In some examples, DMRS may include SSS in SS blocks. In some examples, the operations at block 2810 may be implemented using demodulator 1235 described with reference to FIG.

[0275] At block 2815, the method 2800 time the SS blocks within the BCH TTI based at least in part on the SS block indices, eg, as described with reference to FIGS. identifying. In some examples, the operations at block 2815 may be implemented using sync manager 1240 described with reference to FIG.

[0276] FIG. 29 is a flowchart illustrating an example methodology 2900 for wireless communication at a base station, in accordance with various aspects of the present disclosure. For clarity, method 2900 includes aspects of one or more of the base stations described with reference to FIGS. 1, 3, and 19, aspects of the apparatus described with reference to FIG. Alternatively, described below with respect to aspects of one or more of the base station wireless communication managers described with reference to FIGS. 13-17 and 19. FIG. In some examples, a base station may execute one or more sets of code to control functional elements of the base station to perform the functions described below. Additionally or alternatively, a base station may use dedicated hardware to implement one or more of the functions described below.

[0277] At block 2905, method 2900 may include allocating resources for the SS block, eg, as described with reference to FIGS. An SS block may include a TSS and a PBCH, and thus resources may be allocated for the TSS and PBCH in the SS block. An SS block may also include a PSS and an SSS, and resources in the SS block may be allocated for the PSS and SSS. The SSS may be determined based at least in part on the PCI of the base station. In some examples, the SS block may be one SS block among multiple SS blocks transmitted (eg, by the base station) within the BCH TTI. In some examples, the operations at block 2905 may be implemented using the SS block resource allocator 1725 described with reference to FIG.

[0278] At block 2910, the method 2900 determines a TSS based at least in part on the SS block index associated with the SS block, eg, as described with reference to FIGS. can include The SS block index may indicate the timing of the SS block within the BCH TTI. In some examples, the operations at block 2910 may be implemented using TSS determiner 1730 described with reference to FIG.

[0279] At block 2915, the method 2900 transmits the TSS and PBCH on the resources allocated for the SS blocks, eg, as described with reference to FIGS. can include A transmitted SS block may include the same DMRS for TSS and PBCH on at least one port used to transmit DMRS, TSS, and PBCH. In some examples, DMRS may include SSS in SS blocks. In some examples, the operations at block 2915 may be implemented using the BCH TTI transmission manager 1735 described with reference to FIG.

[0280] The methods 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700, 2800, and 2900 described with reference to Figures 20-29 may provide wireless communication. The methods are exemplary implementations of some of the techniques described in this disclosure, and the operations of the methods may be rearranged, the same or different, as other implementations are possible. Note that other acts of the method may be combined or otherwise modified. In some examples, the operations of methods 2000, 2100, 2400, 2600, or 2800 may be combined. In some examples, the operations of methods 2200, 2300, 2500, 2700, or 2900 may be combined. In some examples, operations may be added to the method.

[0281] The techniques described herein may be used for various wireless communication systems such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system may implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 Releases 0 and A are sometimes referred to as CDMA2000 1X, 1X, and so on. IS-856 (TIA-856) is sometimes referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), and so on. UTRA includes Wideband CDMA (WCDMA®) and other variants of CDMA. A TDMA system may implement a radio technology such as Global System for Mobile Communications (GSM). OFDMA systems include Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash- Wireless technologies such as OFDM® may be implemented. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP's LTE and LTE-A are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named 3GPP. CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies, including cellular (eg, LTE) communications over unlicensed or shared bandwidth. However, although the above description describes an LTE/LTE-A system as an example and LTE terminology is used in much of the above description, the techniques are applicable to other than LTE/LTE-A applications. .

[0282] The detailed description set forth above with respect to the accompanying drawings describes examples, and does not represent all of the examples that may be implemented or that fall within the scope of the claims. The terms "example" and "exemplary," as used herein, mean "serving as an example, instance, or illustration," and "preferred" or "advantaged over other examples." don't mean The detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

[0283] Information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the above description may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or optical particles, or any of these. It can be represented by a combination.

[0284] The various exemplary blocks and components described in relation to this disclosure may be general purpose processors, digital signal processors (DSPs), ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic, discrete It may be implemented or performed using hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but, in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, such as a combination DSP and microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. obtain.

[0285] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Components implementing functions may also be physically located at various locations, including being distributed such that portions of functions are implemented at different physical locations. As used herein, including in the claims, when used in listings of two or more items, the term “or” means that any one of the listed items or any combination of two or more of the listed items may be employed. For example, if a composition is described as containing components A, B, or C, then the composition is A only, B only, C only, A and B in combination, A and C in combination, B and It may contain combinations of C, or combinations of A and B and C. Also, as used herein, including in the claims, a recitation of items (e.g., items ending in phrases such as "at least one of" or "one or more of" "or" as used in enumerations), e.g., the enumeration of "at least one of A, B, or C" means that A or B or C or AB or AC or BC or ABC (i.e., A and A disjunctive enumeration as implying B and C) is shown.

[0286] Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, computer readable media may be RAM, ROM, EEPROM, flash memory, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any form of instruction or data structure. including any other medium that can be used to carry or store desired program code means in a can be done. Also, any connection is properly termed a computer-readable medium. For example, software transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave Where applicable, coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. As used herein, disk and disc refer to compact disc (CD), laser disc (disc), optical disc, digital versatile disc ( DVD), floppy disk and Blu-ray disk, where the disk usually reproduces data magnetically and the disk is , the data is reproduced optically with a laser. Combinations of the above are also included within the scope of computer-readable media.

[0287] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of this disclosure. Accordingly, the present disclosure should not be limited to the examples and designs described herein, but should be accorded the broadest scope consistent with the principles and novel techniques disclosed herein.
The invention described in the original claims of the present application is appended below.
[C1]
Method for wireless communication in user equipment (UE)
receiving a synchronization signal (SS) block including a timing synchronization signal (TSS), a primary synchronization signal (PSS), and a secondary synchronization signal (SSS), the TSS being an SS block index associated with the SS block; based at least in part on
determining the timing of the SS block within a broadcast channel transmission time interval (BCH TTI) based at least in part on the SS block index;
demodulating the TSS based at least in part on the SSS;
A method.
[C2]
further comprising receiving the SS block index encoded in a waveform signature of the TSS or in at least one modulation symbol in the TSS;
The method according to [C1].
[C3]
further comprising identifying a beam from which the SS block is received based at least in part on the SS block index;
The method according to [C1].
[C4]
The SS block further includes a physical broadcast channel (PBCH), the PBCH received based at least in part on the SS block index, the method comprising:
further comprising decoding the PBCH based at least in part on the SS block index;
The method according to [C1].
[C5]
The SS block further includes a Physical Broadcast Channel (PBCH), the method comprising:
further comprising demodulating the PBCH based at least in part on the SSS;
The method according to [C1].
[C6]
1. An apparatus for wireless communication in a user equipment (UE), comprising:
Means for receiving a synchronization signal (SS) block comprising a timing synchronization signal (TSS), a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), said TSS being associated with said SS block. based at least in part on the index;
means for determining timing of the SS block within a broadcast channel transmission time interval (BCH TTI) based at least in part on the SS block index;
means for demodulating the TSS based at least in part on the SSS;
A device comprising:
[C7]
further comprising means for receiving the SS block index encoded in a waveform signature of the TSS or in at least one modulation symbol in the TSS;
The apparatus of [C6].
[C8]
further comprising means for identifying a beam from which the SS block is received based at least in part on the SS block index;
The apparatus of [C6].
[C9]
The SS block further includes a Physical Broadcast Channel (PBCH), the PBCH received based at least in part on the SS block index, the apparatus comprising:
further comprising means for decoding the PBCH based at least in part on the SS block index;
The apparatus of [C6].
[C10]
The SS block further includes a Physical Broadcast Channel (PBCH), and the device:
further comprising means for demodulating the PBCH based at least in part on the SSS;
The apparatus of [C6].
[C11]
A method for wireless communication in a user equipment (UE), comprising:
receiving a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), the TSS being based at least in part on timing of the TSS within a broadcast channel transmission time interval (BCH TTI);
determining the timing of the TSS within the BCH TTI;
demodulating the PBCH based at least in part on the TSS;
A method.
[C12]
receiving a synchronization signal (SS) block including the TSS and the PBCH, wherein the TSS is based at least in part on an SS block index associated with the SS block, the SS block index being the BCH indicating the timing of the TSS within a TTI;
determining the timing of the SS block using the BCH TTI based at least in part on the SS block index;
The method of [C11], further comprising:
[C13]
Receiving the TSS and the PBCH includes:
receiving the TSS on a first set of one or more frequency subcarriers overlapping a second set of one or more frequency subcarriers on which the PBCH is received;
the first set of one or more frequency subcarriers is different than the second set of one or more frequency subcarriers;
The method according to [C12].
[C14]
Receiving the TSS and the PBCH includes:
receiving the TSS frequency division multiplexed with at least a portion of the PBCH;
The method according to [C13].
[C15]
The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and receiving the SSS and the PBCH includes receiving a second portion of the PBCH after the SSS. comprising
The method described in [C14].
[C16]
Receiving the TSS and the PBCH includes:
receiving the TSS on a first set of one or more frequency subcarriers interleaved with a second set of one or more frequency subcarriers on which the PBCH is received;
The method according to [C12].
[C17]
The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and receiving the TSS, the PSS, the SSS, and the PBCH includes:
receiving the interleaved TSS and PBCH and the PSS and SSS frequency division multiplexed;
The method of [C16].
[C18]
further comprising receiving the SS block index encoded in a waveform signature of the TSS or in at least one modulation symbol in the TSS;
The method according to [C12].
[C19]
further comprising identifying a beam on which the SS block is transmitted based at least in part on the SS block index;
The method according to [C12].
[C20]
The PBCH is received based at least in part on the SS block index, the method comprising:
further comprising decoding the PBCH based at least in part on the SS block index;
The method according to [C12].
[C21]
the SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), the SSS being based at least in part on a physical cell identity (PCI) of a base station;
The method according to [C12].
[C22]
The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), the method comprising:
further comprising demodulating the PBCH based at least in part on the SSS;
The method according to [C12].
[C23]
The TSS includes at least one modulation symbol encoding the SS block index, the method comprising:
further comprising decoding the SS block index encoded in the at least one modulation symbol;
the at least one modulation symbol comprises a quadrature phase shift keying (QPSK) symbol;
The method according to [C12].
[C24]
An apparatus for wireless communication in a user equipment (UE), the apparatus comprising:
means for receiving a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), said TSS being based at least in part on timing of said TSS within a broadcast channel transmission time interval (BCH TTI);
means for determining the timing of the TSS within the BCH TTI;
means for demodulating the PBCH based at least in part on the TSS;
A device comprising:
[C25]
means for receiving a synchronization signal (SS) block comprising said TSS and said PBCH, wherein said TSS is based at least in part on an SS block index associated with said SS block, said SS block index being: indicating the timing of the TSS within the BCH TTI;
means for determining the timing of the SS block using the BCH TTI based at least in part on the SS block index;
The apparatus of [C24], further comprising:
[C26]
further comprising means for receiving the TSS on a first set of one or more frequency subcarriers overlapping a second set of one or more frequency subcarriers on which the PBCH is received;
the first set of one or more frequency subcarriers is different than the second set of one or more frequency subcarriers;
The apparatus of [C25].
[C27]
The means for receiving the SS block comprises:
further comprising means for receiving the TSS frequency division multiplexed with at least a portion of the PBCH;
The apparatus of [C26].
[C28]
the SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), a second portion of the PBCH being received after the SSS;
The apparatus of [C27].
[C29]
The means for receiving the SS block comprises:
further comprising means for receiving the TSS on a first set of one or more frequency subcarriers interleaved with a second set of one or more frequency subcarriers on which the PBCH is received;
The apparatus of [C25].
[C30]
The SS block further includes a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS), and the apparatus:
further comprising means for receiving the interleaved TSS and PBCH and the PSS and SSS frequency division multiplexed;
The apparatus of [C29].
[C31]
The means for receiving the SS block comprises:
further comprising means for receiving the SS block index encoded in a waveform signature of the TSS or in at least one modulation symbol in the TSS;
The apparatus of [C25].
[C32]
further comprising means for identifying a beam on which the SS block is transmitted based at least in part on the SS block index;
The apparatus of [C25].
[C33]
The PBCH is received based at least in part on the SS block index, the apparatus comprising:
further comprising means for decoding the PBCH based at least in part on the SS block index;
The apparatus of [C25].
[C34]
the SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), the SSS being based at least in part on a physical cell identity (PCI) of a base station;
The apparatus of [C25].
[C35]
The SS block further includes a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS), and the apparatus:
further comprising means for demodulating the PBCH based at least in part on the SSS;
The apparatus of [C25].
[C36]
The TSS includes at least one modulation symbol encoding the SS block index, and the apparatus comprises:
means for decoding the SS block index encoded in the at least one modulation symbol, the at least one modulation symbol comprising a quadrature phase shift keying (QPSK) symbol;
The apparatus of [C25].
[C37]
allocating resources for a synchronization signal (SS) block;
Determining a timing synchronization signal (TSS) based at least in part on an SS block index associated with the SS block, the SS block index indicating timing of the SS block within a broadcast channel transmission time interval (BCH TTI). ,and,
transmitting the TSS, a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) on the resources allocated for the SS block, the SSS transmitting the TSS and the SSS as a demodulation reference signal (DMRS) for the TSS on at least one port used to
A method for wireless communication at a base station, comprising:
[C38]
encoding the SS block index in a waveform signature of the TSS; or including the SS block index in at least one modulation symbol in the TSS.
The method of [C37], further comprising:
[C39]
the SS block index further identifies the beam on which the SS block is transmitted;
The method of [C37].
[C40]
the SS block further includes a physical broadcast channel (PBCH), the PBCH being transmitted based at least in part on the SS block index;
The method of [C37].
[C41]
The SS block further includes a Physical Broadcast Channel (PBCH), and the SSS is transmitted as a DMRS for the PBCH on at least one port used to transmit the SSS and the PBCH. ,
The method of [C37].
[C42]
The SS block is one SS block among multiple SS blocks transmitted within the BCH TTI.
The method of [C37].
[C43]
An apparatus for wireless communication at a base station, the apparatus comprising:
means for allocating resources for synchronization signal (SS) blocks;
means for determining a timing synchronization signal (TSS) based at least in part on an SS block index associated with said SS block, said SS block index timing said SS block within a broadcast channel transmission time interval (BCH TTI). and
means for transmitting the TSS, a primary synchronization signal (PSS), and a secondary synchronization signal (SSS) on the resources allocated for the SS block, the SSS combining the TSS and the SSS; as a demodulation reference signal (DMRS) for said TSS on at least one port used to transmit
A device comprising:
[C44]
means for encoding the SS block index in a waveform signature of the TSS; or including the SS block index in at least one modulation symbol in the TSS;
The apparatus of [C43], further comprising:
[C45]
the SS block index further identifies the beam on which the SS block is transmitted;
The apparatus of [C43].
[C46]
A method for wireless communication at a base station, comprising:
allocating resources for a timing synchronization signal (TSS) and a physical broadcast channel (PBCH) within a broadcast channel transmission time interval (BCH TTI);
determining the TSS based at least in part on timing of the TSS within the BCH TTI;
transmitting the TSS and the PBCH on the resources allocated for the TSS and the PBCH, the TSS having at least one port used to transmit the TSS and the PBCH as a demodulation reference signal (DMRS) for the PBCH above, and
A method.
[C47]
further comprising allocating resources for a synchronization signal (SS) block, wherein the resources allocated for the SS block include the resources allocated for the TSS and the PBCH;
The timing of the TSS is based at least in part on an SS block index associated with the SS block, the SS block index indicating the timing of the TSS within the BCH TTI, the TSS and the PBCH being the sent by sending an SS block,
The method of [C46].
[C48]
Transmitting the TSS and the PBCH includes:
transmitting the TSS on a first set of one or more frequency subcarriers overlapping a second set of one or more frequency subcarriers on which the PBCH is transmitted;
the first set of one or more frequency subcarriers is different than the second set of one or more frequency subcarriers;
The method of [C47].
[C49]
Transmitting the TSS and the PBCH includes:
frequency division multiplexing the TSS and at least a portion of the PBCH;
The method of [C47].
[C50]
The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and transmitting the SSS and the PBCH includes transmitting a second portion of the PBCH after the SSS. comprising
The method of [C49].
[C51]
Transmitting the TSS and the PBCH includes:
transmitting the TSS on a first set of one or more frequency subcarriers interleaved with a second set of one or more frequency subcarriers on which the PBCH is transmitted;
The method of [C47].
[C52]
The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and transmitting the TSS, the PSS, the SSS, and the PBCH includes:
frequency division multiplexing the PSS and the SSS with the interleaved TSS and PBCH;
The method of [C51].
[C53]
encoding the SS block index in a waveform signature of the TSS; or including the SS block index in at least one modulation symbol in the TSS.
The method of [C47], further comprising:
[C54]
the SS block index further identifies the beam on which the SS block is transmitted;
The method of [C47].
[C55]
the PBCH is transmitted based at least in part on the SS block index;
The method of [C47].
[C56]
the SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), the SSS being determined based at least in part on a physical cell identity (PCI) of the base station;
The method of [C47].
[C57]
The SS block further includes a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS), wherein the SSS is configured to transmit the PBCH on at least one port used to transmit the SSS and the PBCH. transmitted as additional DMRS for
The method of [C47].
[C58]
An apparatus for wireless communication at a base station, the apparatus comprising:
means for allocating resources for a timing synchronization signal (TSS) and a physical broadcast channel (PBCH) within a broadcast channel transmission time interval (BCH TTI);
means for determining the TSS based at least in part on timing of the TSS within the BCH TTI;
means for transmitting the TSS and the PBCH on the resources allocated for the TSS and the PBCH, the TSS being at least one used for transmitting the TSS and the PBCH as a demodulation reference signal (DMRS) for the PBCH on one port, and
A device comprising:
[C59]
further comprising means for allocating resources for a synchronization signal (SS) block, the resources allocated for the SS block including the resources allocated for the TSS and the PBCH;
The timing of the TSS is based at least in part on an SS block index associated with the SS block, wherein the SS block index indicates the timing of the TSS within the BCH TTI, and the TSS and the PBCH are sent by sending a block,
The apparatus of [C58].
[C60]
The means for transmitting the TSS and the PBCH comprises:
further comprising means for transmitting the TSS on a first set of one or more frequency subcarriers overlapping a second set of one or more frequency subcarriers on which the PBCH is transmitted;
the first set of one or more frequency subcarriers is different than the second set of one or more frequency subcarriers;
The apparatus of [C59].

Claims (36)

A method for wireless communication in a user equipment (UE), comprising:
receiving a synchronization signal (SS) block including a timing synchronization signal (TSS), a primary synchronization signal (PSS), and a secondary synchronization signal (SSS), the TSS being an SS block index associated with the SS block; based at least in part on
decoding the SS block index partially encoded in a TSS waveform signature and partially encoded in at least one modulation symbol in the TSS;
determining the timing of the SS block within a broadcast channel transmission time interval (BCH TTI) based at least in part on the SS block index;
demodulating the TSS based at least in part on the SSS by assuming that synchronization signals on the SS blocks are pseudo collocated. further comprising identifying a beam from which the SS block is received based at least in part on the SS block index;
The method of claim 1. The SS block further includes a physical broadcast channel (PBCH), the PBCH received based at least in part on the SS block index, the method comprising:
further comprising decoding the PBCH based at least in part on the SS block index;
The method of claim 1. The SS block further includes a Physical Broadcast Channel (PBCH), the method comprising:
further comprising demodulating the PBCH based at least in part on the SSS;
The method of claim 1. 1. An apparatus for wireless communication in a user equipment (UE), comprising:
a processor;
memory in electronic communication with the processor;
instructions stored in the memory;
and the instruction includes:
receiving a synchronization signal (SS) block including a timing synchronization signal (TSS), a primary synchronization signal (PSS), and a secondary synchronization signal (SSS), the TSS being an SS block index associated with the SS block; based at least in part on
decoding the SS block index partially encoded in a TSS waveform signature and partially encoded in at least one modulation symbol in the TSS;
determining the timing of the SS block within a broadcast channel transmission time interval (BCH TTI) based at least in part on the SS block index;
demodulating the TSS based at least in part on the SSS by assuming that synchronization signals on the SS blocks are pseudo collocated. Said instruction
executable by the processor to receive the SS block index encoded in a waveform signature of the TSS and in at least one modulation symbol in the TSS;
6. Apparatus according to claim 5. Said instruction
executable by the processor to identify a beam from which the SS block is received based at least in part on the SS block index;
6. Apparatus according to claim 5. The SS block further includes a Physical Broadcast Channel (PBCH), the PBCH received based at least in part on the SS block index, the instructions comprising:
executable by the processor to decode the PBCH based at least in part on the SS block index;
6. Apparatus according to claim 5. The SS block further includes a Physical Broadcast Channel (PBCH), and the instructions are:
executable by the processor to demodulate the PBCH based at least in part on the SSS;
6. Apparatus according to claim 5. A method for wireless communication in a user equipment (UE), comprising:
receiving a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), the TSS being based at least in part on timing of the TSS within a broadcast channel transmission time interval (BCH TTI);
decoding a synchronization signal (SS) block index partially encoded in a TSS waveform signature and partially encoded in at least one modulation symbol in the TSS;
determining the timing of the TSS within the BCH TTI;
demodulating the PBCH based at least in part on the TSS by assuming that synchronization signals on SS blocks are pseudo collocated. receiving a synchronization signal (SS) block including the TSS and the PBCH, wherein the TSS is based at least in part on an SS block index associated with the SS block, the SS block index being the BCH indicating the timing of the TSS within a TTI;
11. The method of claim 10, further comprising: determining the timing of the SS block using the BCH TTI based at least in part on the SS block index. Receiving the TSS and the PBCH includes:
receiving the TSS on a first set of one or more frequency subcarriers overlapping a second set of one or more frequency subcarriers on which the PBCH is received;
the first set of one or more frequency subcarriers is different than the second set of one or more frequency subcarriers;
12. The method of claim 11. Receiving the TSS and the PBCH includes:
receiving the TSS frequency division multiplexed with at least a portion of the PBCH;
13. The method of claim 12. The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and receiving the SSS and the PBCH includes receiving a second portion of the PBCH after the SSS. comprising
14. The method of claim 13. Receiving the TSS and the PBCH includes:
receiving the TSS on a first set of one or more frequency subcarriers ; and receiving the PBCH on a second set of one or more frequency subcarriers, wherein in said first set of one or more frequency subcarriers is interleaved with said second set of one or more frequency subcarriers;
12. The method of claim 11. The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and receiving the TSS, the PSS, the SSS, and the PBCH includes:
receiving the interleaved TSS and PBCH and the PSS and SSS frequency division multiplexed;
16. The method of claim 15. further comprising receiving the SS block index encoded in a waveform signature of the TSS and in at least one modulation symbol in the TSS;
12. The method of claim 11. further comprising identifying a beam on which the SS block is transmitted based at least in part on the SS block index;
12. The method of claim 11. The PBCH is received based at least in part on the SS block index, the method comprising:
further comprising decoding the PBCH based at least in part on the SS block index;
12. The method of claim 11. the SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), the SSS being based at least in part on a physical cell identity (PCI) of a base station;
12. The method of claim 11. The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), the method comprising:
further comprising demodulating the PBCH based at least in part on the SSS;
12. The method of claim 11. The TSS includes at least one modulation symbol encoding the SS block index, the method comprising:
further comprising decoding the SS block index encoded in the at least one modulation symbol;
the at least one modulation symbol comprises a quadrature phase shift keying (QPSK) symbol;
12. The method of claim 11. 1. An apparatus for wireless communication in a user equipment (UE), comprising:
a processor;
memory in electronic communication with the processor;
instructions stored in the memory;
and the instruction includes:
receiving a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), the TSS being based at least in part on timing of the TSS within a broadcast channel transmission time interval (BCH TTI);
decoding a synchronization signal (SS) block index partially encoded in a TSS waveform signature and partially encoded in at least one modulation symbol in the TSS;
determining the timing of the TSS within the BCH TTI;
demodulating the PBCH based at least in part on the TSS by assuming that synchronization signals on SS blocks are pseudo collocated. Said instruction
receiving a synchronization signal (SS) block including the TSS and the PBCH, wherein the TSS is based at least in part on an SS block index associated with the SS block, the SS block index being the BCH indicating the timing of the TSS within a TTI;
24. The apparatus of claim 23, executable by the processor to: determine the timing of the SS block using the BCH TTI based at least in part on the SS block index. The instructions for receiving the SS block include:
executable by the processor to receive the TSS on a first set of one or more frequency subcarriers overlapping a second set of one or more frequency subcarriers on which the PBCH is received; can be,
the first set of one or more frequency subcarriers is different than the second set of one or more frequency subcarriers;
25. Apparatus according to claim 24. The instructions for receiving the SS block include:
executable by the processor to receive the TSS frequency division multiplexed with at least a portion of the PBCH;
26. Apparatus according to claim 25. The SS block further includes a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS), and the instructions for receiving the SSS and the PBCH include a second portion of the PBCH after the SSS. executable by the processor to receive
27. Apparatus according to claim 26. The instructions for receiving the SS block include:
executable by the processor to receive the TSS on a first set of one or more frequency subcarriers and the PBCH on a second set of one or more frequency subcarriers; A, wherein said first set of one or more frequency subcarriers is interleaved with said second set of one or more frequency subcarriers;
25. Apparatus according to claim 24. The SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and the instructions for receiving the SS block include:
executable by the processor to receive the interleaved TSS and PBCH and the PSS and SSS frequency division multiplexed;
29. Apparatus according to claim 28. The instructions for receiving the SS block include:
executable by the processor to receive the SS block index encoded in a waveform signature of the TSS and in at least one modulation symbol in the TSS;
25. Apparatus according to claim 24. Said instruction
executable by the processor to identify a beam on which the SS block is transmitted based at least in part on the SS block index;
25. Apparatus according to claim 24. The PBCH is received based at least in part on the SS block index, and the instructions include:
executable by the processor to decode the PBCH based at least in part on the SS block index;
25. Apparatus according to claim 24. the SS block further includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), the SSS being based at least in part on a physical cell identity (PCI) of a base station;
25. Apparatus according to claim 24. The SS block further includes a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS), and the instructions are:
executable by the processor to demodulate the PBCH based at least in part on the SSS;
25. Apparatus according to claim 24. The TSS includes at least one modulation symbol encoding the SS block index, and the instructions are:
executable by the processor to decode the SS block index encoded in the at least one modulation symbol, the at least one modulation symbol comprising a quadrature phase shift keying (QPSK) symbol;
25. Apparatus according to claim 24. receiving a second SS block including a second TSS, the PSS, and the SSS, the second TSS being at least part of a second SS block index associated with the second SS block based on
determining the timing of each of the SS block and the second SS block within the BCH TTI based at least in part on the SS block index and the second SS block index;
2. The method of claim 1, further comprising: demodulating the TSS and the second TSS based at least in part on the SSS.

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